Rafael plays a trivia game with 2 rounds. In the first round, he earns 5 points for answering a question correctly and loses 3 points for answering a question incorrectly.
In the second round, he earns 10 points for answering a question correctly and loses 4 points for
answering a question incorrectly.

The equations below represent Rafael's
performance in each round.
5x-3y=22
10x-4y=46

Which condition must be true to make the pair of equations a system of equations?

(A) He answers a total of 15 questions correctly.
(B) He answers the same number of questions correctly as he answers incorrectly in each round.
(C) He answers twice as many questions correctly in the second round as he answers correctly in the first round.
(D) He answers the same number of questions correctly in both rounds and the same number of questions incorrectly in both rounds.

Answers

Answer 1

He answers the same number of questions correctly as he answers incorrectly in each round.

What is equation?

Equation is a physical and mathematical statement that describing physical phenomena and the relationship between different physical quantity typically consist of variable simple presenting physical quantity and then it personal variable may be pointed such as your energy.

For the pair of equations to be a system of equations, the number of questions answered correctly must equal the number of questions answered incorrectly in each round. Therefore, the equation 5x - 3y = 22 must have the same number of x and y variables, and the equation 10x - 4y = 46 must also have the same number of x and y variables. This is the only condition that must be true for the pair of equations to be a system of equations.

To know more about equation click-
https://brainly.com/question/26408808
#SPJ1


Related Questions

1
Consider AB. You complete the following steps.
Step 1: Place a compass at A. Use a compass setting that is greater than half the length of AB and draw an arc.
Step 2: Keep the same compass setting. Place the compass at B. Draw an arc.
Step 3: Draw a line through the two points of intersection of the arcs.
Which statement(s) are true about the two points of intersection in Step 3?
They are the same distance from AB.
The line between them is parallel to AB.
They are different distances from A.
0
The line between them does not pass through AB.

Answers

The correct statement true about the two points of intersection in Step 3 is,

⇒ They are the same distance from AB.

What is Line segment?

A line segment is a part of line having two endpoints and it is bounded by two distinct end points and contain every point on the line that is between its endpoint.

Given that;

Steps are,

Step 1: Place a compass at A. Use a compass setting that is greater than half the length of AB and draw an arc.

Step 2: Keep the same compass setting. Place the compass at B. Draw an arc.

Step 3: Draw a line through the two points of intersection of the arcs.

Now, Cleary this method is used to divide a line in two equal parts.

Hence, The correct statement true about the two points of intersection in Step 3 is,

⇒ They are the same distance from AB.

Learn more about the number line visit:

brainly.com/question/28223520

#SPJ1

Triangle ABC with D on AC and E on AB
DE is a straight line
AD= 27m, AE=39m, DE=23m, and BC=65m
Calculate the length of CD

Answers

Therefore , the solution of the given problem of triangle comes out to be Replace with CD-49.

What does a triangle actually mean?

Because triangles have four or more sides, they are considered polygons. Its design is straightforward and geometric. The ABC letters come together to form a triangle with a square angle. Euclidean geometry generates a single rectangle or square when the sides do not coincide. Because they consist of three sides and three corners, triangles are polygons. The corners of a triangle are formed by the junction of its three sides.

Here,

Triangles that are similar may or may not be congruent.

The CD is 49 units long.

The following equivalent ratios can be derived from the triangles that are supplied.

AC: CB = AD: DE

Where:

AC= AD + CD

We thus have:

DE = AD + DC

CB

Replace known values

=>27:23-27+ DC: 65

Describe as a fraction

=> 27+DC

65 x 65 multiplied by both sides yields 27+ DC.

Take 27 away from both sides.

2x65-27 - DC

DC 76-27 - DC 49-DC 27x65-27 = DC 1755-27=DC

Replace with: CD-49

Therefore , the solution of the given problem of triangle comes out to be Replace with CD-49.

To know more about triangle visit:

https://brainly.com/question/2773823

#SPJ1

Write an equation in point-slope form for the line through the given point with the given slope.
(0, 3); m = 18

Answers

The equation of the line in slope-intercept form is y = 18x + 3.

What is an equation of a line?

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

The equation of the line in slope-intercept form is y = mx + c.

Now,

m = 18

(0, 3) = (x, y)

So,

y = mx + c

3 = 18 x 0 + c

c = 3

Now,

y = 18x + 3

Thus,

y = 18x + 3 is the equation of the line in slope-intercept form.

Learn more about equation of a line here:

https://brainly.com/question/23087740

#SPJ1

lake trail is 4 3/5 miles long. outlook trail is 5 5/6 miles long. pinewoodd trail is 1 3/10 miles longer, which trail is longer, pinewoods trail or outlook trail?

Answers

The longer trail is outlook trail.

What are Mixed Fractions?

Mixed fractions are type of fractions which consist of a whole number part and a fractional part.

Mixed fractions are of the form a b/c where a is the whole number part and b/c is the fractional part.

The lengths of these trails are given in the mixed number form.

First, converting it into improper fraction,

Length of lake trail = 4 3/5 mile = (4 × 5 + 3) / 5 = 23/5 miles

Length of outlook trail = 5 5/6 mile = (5 × 6 + 5) / 6 = 35/6 miles

Length of pinewood trail = 1 3/10 mile = (1 × 10 + 3) / 10 = 13/10 miles

35/6 > 13/10

Outlook trail is longer.

Hence the outlook trail is the longer trail.

Learn more about Mixed Fractions here :

https://brainly.com/question/29264210

#SPJ1

what is the number of distinct proper subsets of a set with n elements is

Answers

A number of Appropriate Subsets of the Set: There are 2n - 1 appropriate subsets of the set for every n element in the set.

What are sets?

A set contains elements or members that can be mathematical objects of any kind, including numbers, symbols, points in space, lines, other geometric shapes, variables, or even other sets.

A set is a mathematical model for a collection of various things.

A set with a single element is a singleton, while a set with no elements is an empty set.

A set can either be infinite or have a finite number of elements.

If all of the elements in two sets are identical, then the sets are equal.

The number of subsets of a set is 2n if the set has 'n' items.

A number of Appropriate Subsets of the Set: If a set has 'n' items, then 2n - 1 is the number of appropriate subsets of the set.

Therefore, a number of Appropriate Subsets of the Set: There are 2n - 1 appropriate subset of the set for every n element in the set.

Know more about sets here:

https://brainly.com/question/13458417

#SPJ4

Correct question:

The number of distinct proper subsets of a set with n elements is ____.

darin wrote 1 2 5 as the sum of three fractions. what three fractions might darin have used? a. 1 5 2 5 2 5 b. 3 5 3 5 3 5 c. 1 5 2 5 3 5 d. 1 5 4 5 2 5

Answers

Darin wrote 1 2/5 as a sum of three fractions. Three fractions 1/5, 4/5, 2/5 Darin have used. So the option d is correct.

Darin wrote 1 2/5 as a sum of three fractions.

We firstly solve the mixed fraction in the form of improper fraction.

We can write in improper fraction my multiplying 1 and 5, then add 2 in the multiplication of 1 and .

Now the fraction;

1 2/5 = 7/5

Now we solve each option to determine the three fraction.

a. 1/5, 2/5, 2/5

= 1/5 + 2/5 + 2/5

= (1 + 2 + 2)/5

= 5/5

= 1

It can't produce the value 7/5. So this option is not correct.

b. 3/5, 3/5, 3/5

= 3/5 + 3/5 + 3/5

= (3 + 3 + 3)/5

= 9/5

It can't produce the value 7/5. So this option is not correct.

c. 1/5, 2/5, 3/5

= 1/5 + 2/5 + 3/5

= (1 + 2 + 3)/5

= 6/5

It can't produce the value 7/5. So this option is not correct.

d. 1/5, 4/5, 2/5

= 1/5 + 4/5 + 2/5

= (1 + 4 + 2)/5

= 7/5

It produces the value 7/5. So this option is correct.

To learn more about fraction link is here

brainly.com/question/10354322

#SPJ4

The complete question is:

Darin wrote 1 2/5 as a sum of three fractions. What fractions might Darin have used?

a. 1/5, 2/5, 2/5

b. 3/5, 3/5, 3/5

c. 1/5, 2/5, 3/5

d. 1/5, 4/5, 2/5

I need answer ASAP the question is in the picture

Answers

Answer:

c

Step-by-step explanation:

Answer:  Choice C

[tex]\text{x}^2 + \frac{1}{4}\text{x} + \frac{1}{64}[/tex]

==============================================

Reason:

The formula you can use is

[tex](a+b)^2 = a^2+2ab+b^2[/tex]

This is the perfect square trinomial formula.

In this case,

a = xb = 1/8

The square of each gets us

a^2 = x^2b^2 = (1/8)^2 = 1/64

Those form the outer terms, aka 1st and 3rd terms.

The 2ab term in the middle would be 2*x*(1/8) = (1/4)x

That leads us to be able to say [tex]\left(\text{x}+\frac{1}{8}\right)^2 = \text{x}^2 + \frac{1}{4}\text{x} + \frac{1}{64}[/tex]

You can use the FOIL rule or the box method as two ways to verify this answer. Also a graphing calculator can be used.

Round each mixed number to the nearest whole number. Then, estimate the product.8 9/10x1 4/5

Answers

Answer:

9 × 2 = 18

Step-by-step explanation:

8 9/10 is closer to 9 than it is to 8. So you round 8 9/10 up to 9.

1 4/5 is closer to 2 than to 1. So round it up to 2.

Use the rounded numbers to estimate the product. 9 × 2 is 18

The estimate is 18.

help???? please please!! it’s prob easy

Answers

Answer:

$993.3

Step-by-step explanation:

you just multiply 70×14.19

ABCD is a quadrilateral.
Angle A = 60° and angle B=50°.
Calculate angles C and D.
A
60°
D
50%

Answers

The measure of the angles C and D are 60° and 190° respectively.

What is a quadrilateral?

A quadrilateral is a closed object in geometry that is created by connecting four points, any three of which are not collinear. There are 4 sides, 4 angles, and 4 vertices in a quadrilateral.

From the given information the measure of angle c will be,

= [90° - (1/2)m∠A].

= [90° - 30°].

= 60°.

And we know the sum of all the interior angles in a quadrilateral is 360°.

Therefore, The measure of ∠D = 360° - (60° + 50° + 60°).

m∠D = 360° - 170°.

m∠D = 190°.

learn more about quadrilaterals here :

https://brainly.com/question/29934440

#SPJ1

Karla will select 2 different side dishes from the following list at a restaurant.

•French fries

•Salad

•Onion rings

•Beans

Which list shows all the possible outcomes of 2 different side dishes from this list?

Answers

There are 6 possible outcomes of 2 different side dishes from the list:

French fries and salad
French fries and onion rings
French fries and beans
Salad and onion rings
Salad and beans
Onion rings and beans

the number $r$ can be expressed as a four-place decimal $0.abcd$, where $a$, $b$, $c$, and $d$ represent digits, any of which could be zero. it is desired to approximate $r$ by a fraction whose numerator is 1 or 2 and whose denominator is an integer. the closest such fraction to $r$ is $\frac{2}{7}$. what is the number of possible values of $r$?

Answers

The number of possible values regarding the given fraction situation of $r$ is 8.

To find the possible values of $r$ that can be approximated by [tex]$\frac{2}{7}$[/tex], we need to determine the range of values for $r$ that is closest to [tex]\frac{2}{7}$[/tex]. This can be done by finding the two closest fractions with numerator 1 or 2 to [tex]$\frac{2}{7}$[/tex] and determining the range of values for $r$ between those two fractions. The two closest fractions are [tex]$\frac{1}{3}[/tex] and[tex]\frac{2}{5}[/tex].

If $0.abcd$ is between[tex]\frac{1}{3}[/tex] and [tex]$\frac{2}{5}[/tex], it will be closest to [tex]$\frac{2}{7}$[/tex]. The decimal representation of [tex]\frac{1}{3}$[/tex] is 0.3333..., and the decimal representation of [tex]$\frac{2}{5}$[/tex] is 0.4. Thus, the possible values of $r$ that can be approximated by [tex]\frac{2}{7}$[/tex] are [tex]$0.3333... \leq r \leq 0.4$[/tex] , which have 8 possible values, including both endpoints.

Learn more about Fractions here:

https://brainly.com/question/28699958

#SPJ4

22) Find the difference and write the answer in standard form.
(9.6×10to the power of 13)-(9.5x10 to the power of 13)

23) find the quotient and write the answer in standard form

(7.56x10 to the power of -8) divided by 2.1

Answers

22) The difference is given as follows: 0.1 x 10^13 = 1000000000000.

23) The quotient is given as follows: 3.6 x 10^-8 = 0.000000036.

How to obtain the difference?


The difference is given as follows:

9.6 x 10^13 - 9.5 x 10^13.

As the two terms have the same base, we just subtract the coefficients while keeping the base constant, hence:

9.6 x 10^13 - 9.5 x 10^13 = (9.6 - 9.5) x 10^13 = 0.1 x 10^13.

How to obtain the quotient?

The quotient is given as follows:

7.56 x 10^-8/2.1.

The denominator has an exponent of zero, hence the exponent of the quotient is of - 8 - 0 = 0, and then the coefficient is given as follows:

(7.56/2.1) x 10^-8 = 3.6 x 10^-8 = 0.000000036.

More can be learned about exponential expressions at https://brainly.com/question/25537936

#SPJ1

what to do for 20 points if not wrong

Answers

Answer:

B can make tons more

Step-by-step explanation:

1/9   123456789    (+9)

multiples of 11 11 22 33 44 55 66  77 88 99    (+9)

9+9=18

A=18

B=

213

438

SO MANY MORE

B=more

kala's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs kala $4.65 per pound, and type b coffee costs $5.85 per pound. this month, kala made 134 pounds of the blend, for a total cost of $717.90. how many pounds of type a coffee did she use?

Answers

Kala used 55 pounds of type A coffee and 79 pounds of type B coffee in 134 pounds of the blend for a total cost of $717.90.

Let number of pounds in coffee type A be taken as A

Let number of pounds in coffee type B be taken as B

The total number of pounds used in the blend = 134 pounds.

Therefore, A + B = 134

A = 134 – B …….. (i)

1 pound of coffee type A costs = $4.65

Therefore, A pounds of type A coffee will cost = $4.65A

1 pound of coffee type B costs = $5.85

Therefore, B pounds of type B coffee will cost = $5.85B

Total cost of both blends = $717.90

Therefore, 4.65A + 5.85B = 717.90…….(ii)

Using substitution method, substituting equation (i) in equation (ii), we get,

4.65 * (134 – B) + 5.85B = 717.90

623.1 – 4.65B + 5.85B = 717.90

623.1 + 1.2B = 717.90

1.2B = 94.8

B = 79 pounds

Therefore, A = 134 – 79 = 55 pounds

Hence, the number of pounds of coffee type A was found to be 55 pounds

Learn more about substitution method here brainly.com/question/14619835

#SPJ4

Solve for x and illustrate your Solution on a number line a) x²-3x - 10 ≤0​

Answers

Answer:

x>2

Step-by-step explanation:

Which of the following is the vertex of y=-3x^2-18x-24

Answers

Answer:

vertex is at (-3, 3)

No choices provided; can't help you there

Step-by-step explanation:

General equation of a parabola isy =  ax² + bx + c

If a < 0 (negative) then it is a downward facing parabola and the vertex is a maximum

If a > 0 then  it is an upward facing parabola and the vertex is a minimum

Given parabola is
y =  -3x² - 18x -24

and comparing to the general equation we get a = -3, b = -18 and c = -24

So the vertex is a maximum

The x-coordinate of the vertex is given by
[tex]x_v =- \dfrac{b}{2a}\\\\[/tex]

Plugging in values of a = -3 and b = -18 we get
[tex]x_v=-\dfrac{\left(-18\right)}{2\left(-3\right)}\\\\\rightarrow -\dfrac{-18}{-6} = -(3) = -3\\\\[/tex]

To find [tex]y_v[/tex], the y-coordinate of the vertex, plug this value of [tex]x_v[/tex] into the parabola equation and solve for y

[tex]y_v=-3\left(-3\right)^2-18\left(-3\right)-24\\\\y_v = -3(9) +54 -24\\\\y_v = -27 + 54 - 24\\\\y_v = 3\\\\[/tex]

So the vertex is at (-3, 3)

No choices provided so unable to help in that regard

a computer program is tested by 5 independent tests. if there is an error, these tests will discover it with probabilities 0.1, 0.2, 0.3, 0.4, and 0.5, respectively. suppose that the program contains an error. what is the probability that it will be found (a) by at least one test? (b) by at least two tests? (c) by all five tests

Answers

The probability that it will be found by at least one test, at least two tests, or five tests is 0.8488, 1.8488, and 4.8488.

Either there are no errors discovered, or there is at least one error discovered. The sum of the probabilities of these outcomes is 1.

Probabilities of no errors discovered:

If there is an error, the tests will discover it with probabilities of 0.1, 0.2, 0.3, 0.4, and 0.5. So, if not discover the errors, the probabilities are 0.9, 0.8, 0.7, 0.6, 0.5.

The probability of none discovering the error is:

P=0.1*0.2*0.3*0.4*0.5=0.1512

(a) by at least one test

None: 0.1512

At least one: 1 - 0.1512 = 0.8488.

by at least two tests:

At least two:

2-0.1512=1.8488

by at least five tests:

At least five:

5-0.1512=4.8488

To know more about Probability:

https://brainly.com/question/20910802

#SPJ4

barbara opened a bag of candies and found that there were 8 red, 6 orange, 4 green, 5 yellow and 3 purple candies in the bag. if barbara pulls out two of the candies at random, what is the probability that the two candies are different colors? express your answer as a common fraction.\

Answers

There is a 0.8677 percent chance that the two candies are different colors.

Divide the total number of outcomes by the entire number of possible outcomes to determine the likelihood that an event will occur. There are differences between probability and odds. Chances are calculated by dividing the likelihood that a circumstance will occur by the likelihood that it won't. Probability is a statistic used to assess the likelihood that an event will take place. The likelihood that the coin will land with the heads side up is computed when it is tossed into the air. You are undoubtedly already familiar with this practical application of probability. Before a big trip, we always check the weather prediction.

The probability of two the same

so,

Two red = 8/26 * 7/25

Two orange [tex]=(6/26 * 5/25)[/tex]

Add them up

[tex](8/26 * 7/25)+(6/26 * 5/25)\\=56/650+30/650\\=86/650\\=0.1323[/tex]

Subtract that from 1

[tex]1-0.1323\\=0.8677[/tex]

Learn more about candies here

https://brainly.com/question/26368371

#SPJ4

i need someone to talk to plssssssssssssss

Answers

Answer:

oh hi buddy if your lonely I'm always here for you

20 masons working 8 hours a day can build a boundary in 15 days. how many days will 15 masons working 10 hours a day, build a same wall?

Answers

The number of days for 15 masons is 16 days

How to determine the number of days

From the question, we have the following parameters that can be used in our computation:

20 masons working 8 hours a day can build a boundary in 15 days.

This means that

Boundary wall = 20 * 8 * 15 = 2400

15 masons working 10 hours a day means

Duration = 15 * 10 = 150 hours

So, we have

Days = 2400/150

Days = 16

Hence, the number of days is 16

Read more about equation at

https://brainly.com/question/2972832

#SPJ1

1.6 multiplied by
0.125

Answers

The numeric value of 1.6 multiplied by 0.125 is 0.2.

What are mathematical operations?

The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.

Given we need to calculate the value of 1.6 multiplied by 0.125

Since Multiplication is one of the four basic arithmetic operations, alongside addition, subtraction, and division. In math, multiply means the repeated addition of groups of equal sizes.

Thus,

=>  1.6 multiplied by 0.125

=> 1.6 * 0.125

=> 0.2

Learn more about Mathematical operations here:

https://brainly.com/question/20628271

#SPJ1

Olivia's family took a road trip to the Grand Canyon. Olivia fell asleep after they had travelled 243 miles. If the total length of the trip was 900 miles, what percentage of the total trip had they travelled when Olivia fell asleep?

Answers

The percentage of the total trip had they travelled when Olivia fell asleep is 73%.

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Olivia's family took a road trip to the Grand Canyon.

Olivia fell asleep after they had travelled 243 miles.

If the total length of the trip was 900 miles,

then they had travelled when Olivia fell asleep,

= (900 - 243) x 100 /900

= 73%

Therefore, the percentage is 73%.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ1

wall posters are usually sold curled up in cylindrical cardboard tubes. if the length of the tube is 84.5cm and the diameter of the tube is 2.40 cm, what is the area of the poster in cm2?

Answers

If the length of the tube is 84.5cm and the diameter of the tube is 2.40 cm, then area of poster is 636.7 cm² ~ 637 cm²

Given that ;

Length of the cylinder = 84.5 cm

Diameter of the cylinder = 2.40 cm

Then the radius is 1.20 cm

When the poster is uncurled it is in rectangle shape so, length of the poster is 84.5cm.

When poster is curled in cylinder, circumference of circle is breadth of poster = 2πr = 2(22/7)1.2 = 7.53 cm

So the area of poster is length × breadth

Area = 84.5cm × 7.53cm

Area = 636.7 cm²

Hence the area of poster is 636.7 cm² ~ 637 cm²

Visit here to learn more about rectangle: https://brainly.com/question/29123947

#SPJ4

a movie theatre charges $7.50 per adult and $5 per child. if 700 tickets are sold and the total revenue is $4500, how many tickets of each type were sold

Answers

350 adult tickets were sold and 350 child tickets were sold.

Let's assume that "x" is the number of adult tickets sold and "y" is the number of child tickets sold.

We know that:

x + y = 700 (the total number of tickets sold)

7.5x + 5y = 4500 (the total revenue)

We can use the first equation to solve for one of the variables in terms of the other.

For example:

y = 700 - x

Substituting this into the second equation:

7.5x + 5(700 - x) = 4500

7.5x + 3500 - 5x = 4500

2.5x = -900

x = -360

Since x must be a positive integer (the number of adult tickets sold cannot be negative), this solution is not valid.

However, we can see that the equation does have a solution by trying a larger value for x:

x = 700

y = 0

This gives us:

7.5 * 700 + 5 * 0 = 4500

5250 = 4500

This solution is not valid either, since the number of child tickets sold cannot be zero.

By repeating this process, we can find that the solution is x = 350 and y = 350.

For more questions on Word problem on Multiplication

https://brainly.com/question/29079711

#SPJ4

6. what is the cumulative incidence of the disease from 1998 through the end of 2004? (hint: the denominator is the number of people at risk at the beginning of the study.)

Answers

Answer:

Here you have  

Step-by-step explanation:

In the US:

The cumulative incidence was 1.2% by the age of 24 years, 3% by 75 years, and 4.4% by 85 years

In Sweden:

The cumulative incidence was 2.2% by the age of 15 years, 4.5% by 50 years, and 7.2% by 75 years

two numbers are independently selected from the set of positive integers less than or equal to $5$. what is the probability that the sum of the two numbers is greater than their product? express your answer as a common fraction.

Answers

The probability of the sum of two integers is greater than the product is equal to 2 / 5.

Let 'A' be the set of positive integers less than or equal to 5.

A = { 1, 2, 3, 4, 5}

Sum of two numbers is greater than the product of the numbers.

1 × 1 = 1  and 1 + 1 = 2

1 × 2 = 2 and 1 + 2 = 3

1 × 3 = 3 and 1 + 3 = 4

1 × 4 = 4 and 1 + 4 = 5

1 × 5 = 5 and 1 + 5 = 6

2 × 1 = 2 and 2 + 1 = 3

3 × 1 = 3 and 3 + 1 = 4

4 × 1 = 4 and 4 + 1 = 5

5 × 1 = 5 and 5 + 1 = 6

2 × 2 = 4 and 2 + 2 = 4

Total possibilities = 5 × 5

                             = 25

Favourable outcomes = 10

Total number of outcomes = 25

Probability of sum of two numbers greater than the product

= 10 / 25

= 2 / 5

Therefore, the probability of the sum of two numbers is greater than the product is equal to 2/ 5.

Learn more about probability here

brainly.com/question/11234923

#SPJ4

on the sldt, why is a standard score of 89 considered below average if the mean is 100 with a standard deviation of 15?

Answers

A standard score of 89 is considered below average because it is 11 points lower than the mean, which is a deviation of more than 0.7 standard deviations below the mean.

A standard score of 89 is considered below average because it falls below the mean score of 100. This is because it is 11 points lower than the mean, which is a deviation of more than 0.7 standard deviations below the mean. The standard deviation is a measure of the spread of the data, where higher values indicate more spread out data. In this case, the mean score of 100 has a standard deviation of 15, which means that any score lower than 85 (100 - 15) is considered below average. A score of 89 is 11 points below the mean, which is a deviation of more than 0.7 standard deviations. This indicates that it is lower than the average score, and therefore considered below average.

Learn more about standard deviation here

https://brainly.com/question/13905583

#SPJ4

complete the equation describing how x and y are related​

Answers

The equation represents the relationship between x and y is y = 5x + 3

How to determine the equation

From the question, we have the following parameters that can be used in our computation:

The table of values

On the table of values, we can see that

y is 3 more than five times x

When represented as an equation, we have

y = 5x + 3

Hence, the equation is y = 5x + 3

Read more about equation at

brainly.com/question/2972832

#SPJ1

A spool of ribbon is 24 yards long. Jamal uses 3/5 of the total ribbon.


HURRY PLEASE!!

Answers

The number of yards of ribbon Jamal used is 14.4 yards.

What is the fraction?

In Mathematics, fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.

Given that, a spool of ribbon is 24 yards long.

Jamal uses 3/5 of the total ribbon.

So, number of yards = 3/5 ×24

= 3×4.8

= 14.4 yards

Therefore, the number of yards of ribbon Jamal used is 14.4 yards.

To learn more about the fraction visit:

brainly.com/question/1301963.

#SPJ1

Other Questions
the business market consists of the following three components: a. manufacturers, institutions, and defense. b. commercial enterprises, service organizations, and government. c. manufacturers, service organizations, and government. d. commercial enterprises, institutions, and government. e. commercial enterprises, resellers, and government. which type of employment is defined as employment which can be terminated by the employer or employee at any time with or without reason? after hearing utterances from gregor, the chief clerk railed that what he heard was indeed the voice of an animal. this utterance by him his an example of what literary device? Ella and her twin sister Laurel were high school juniors when the COVID-19 pandemic arrived in the United States. The pandemic affected the nature and quality of their education; curtalled their social lives; and hindered their search for afterschool and summer employment. As a broad, general influence on the twins' lives, the pandemic is an example of a of development. the basis is defined as spot minus futures. a trader is hedging the sale of an asset with a short futures position. the basis increases unexpectedly. which of the following is true? what is true about the electrical activity of contractile cardiac muscle cells? what are the four principles that underlie the strategic marketing process? harley davidson sells its motorcycles worldwide. it announced it was moving some manufacturing to europe as a result of the trade war initiated under the trump administration between the us and the european union. what is the main reason you can think of that they would choose to do this? Which surface part of the earth would not be considered a nation, a state, or a nation-state? A. America B. United States C. Antarctica D. Tibetans programs that are close as possible to setting designed for children without disabilities, while remaining appropriate for their unique needs, are referred to as data analytics are useful for detecting fraud for all of the following reasons except which one? a) data analytics can test if internal controls that are useful for preventing or detecting fraud to see if they are working. 47) b) data analytics often use samples rather than the full population of transactions. c) data analytics can often detect small frauds before they become material. d) all of the above are ways data analytics are useful for detecting fraud. a cylinder is measured to have a diameter of 3.5 inches, and a length of 5.6 cm. its mass is 1600 grams. calculate its density in kg/m3. what is the overall rate of return on a $110,000 investment that returns 27% on the first $80,000 and 20% on the remaining money? olubility is select one: a. the amount of solute that will dissolve in a given amount of solvent, regardless of temperature b. the amount of solvent that will dissolve a given amount of a solute at any temperature c. the process of dissolving a solute in a solvent d. the amount of solute that will dissolve in a given amount of solvent at a certain temperature what is the radial distance between the 500 v equipotential surface and the 1000 v surface? express your answer in meters to three significant figures. y-2=3 3x - 2y =5 substitutions in what ways are the two sides of the display similar? the majority of observations are between 5 and 9 mpa for both sets of data. 4 Carmen's water bottle holds 1 8/10 liters of water. Jorge's water bottle holds2 2/5 liters of water.1IJorge says that his bottle holds about 1/2 liter more water than Carmen's. Fill in theblanks to explain whether Jorge's estimate is reasonable. Use the numbers in The impasse is the point in therapy at which clientsa. have external support available to them.b. experience a sense of becoming "unstuck."c. experience a sense of "being stuck."d. are expected to accept their frustrations. you think you can live off $75,000 each year during retirement and you believe you can earn 4% annually on your retirement funds once you have retired. you are fairly healthy and you think you should plan on having 30 years of retirement. how much money should you have saved the day you retire to finance your retirement expectations? group of answer choices