Roslan had a total of 50$ in 10-cents coins,20- cent coins and 50-cents coins .the value of his 10- cents coins was 30% of the total value of all his coins.the value of his 20-coins wad 28% of the total value of all his coins. what was the value of his 50-cents coins?

Answer:

T9=60

Step-by-step explanation:

step 1: solve for x

it is an arithmetic pattern,so the 1st difference is the common difference (d)

therefore...9x+199x+11-(4x+44x+4)=14x+18-(9x+199x+11)

128x+11-48x-4=14x+18-128x-11

80x+7=-144x+7

80x+144x=7-7

224x=0

224x/224=0/224

X=0

step 2: substitute for x

4(0)+44(0)+4=4[1st term]

9(0)+119(0)+11=11(2nd term)

14(0)+18=18(3rd term)

step 3:find the common difference

d=3rd term- 2nd term, 2nd term-1st term

3rd term-2nd term

18-11=7

2nd term-1st term

11-4=7

therefore...d=7

step 4:find the general formula

we use the formula Tn=a+(n-1)d to find the general formula/ nth term

where: Tn is the nth term

a is the first term

n is the number of term

d is the common difference

Tn=a+(n-1)d

=4+(n-1)7

=4+7n-7

=7n-3

step 5:find the 9th term

Tn=a+(n-1)d

=7n-3

=7(9)-3

=60

The total number of notebooks on Sasha's notebook is 2c - 6.

Unitary method:

The unitary method is used to solve problems by first determining the value of a single unit and then multiplying that value by the required value.

So, this method is basically used to find the value of a unit and then the value of a required number of units.

Given,

Sasha has c green notebooks.

She has 6 fewer red notebooks then green notebooks.

So, here we need to find how many notebooks does Sasha have in all.

We know that.

Sasha has c green notebooks.

The number of red notebooks on her is  

=> c − 6.

Here Sasha has either green or red notebooks.

The total number of notebooks on Sasha's notebook is  

=> c + c − 6

=> 2c - 6

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Lucy's dog needs to gain 6 pounds.

Lucy's dog lost 6 pounds so the dog will have to gain 6 pounds.

Answer: maximum amount: 75 times a year

Step-by-step explanation:

Answer: There are 12 volleyball players

Step-by-step explanation:

If the ratio of basket to volleyball players is 5:2 and there are 30 known basket ball players that means the ratio can be written as 30:x.

If 30 is 5 parts (5x) and volleyball players is 2 parts (2x)  we need to figure out the value of 1 part (x)

This can be done by

5x=30

x=6

Now we know what 1 part is, we can now use that two figure out 2 parts

2x or 2(6)

2(6) = 12

So the ratio is 30:12. This can be confirmed by dividing both sides of the radio by 6 to get 5:2

Step-by-step explanation:

3.1.1 The base of the prism is a rectangle.we know this by checking the properties of the base,that is, opposite side are equal and it has all angles equal to 90°

3.1.2the area of a rectangle is calculated using the formula: A=LxB

where: A is the Area

L is the Length of the shape

B is the breadth

3.1.3 to calculate the volume of a prism we can use the formula V=A(base)xh

where:V is the volume

A is the area of the base

h is the height of the prism

3.1.4V=Axh

=(LxB)xh

=(140mm x 115mm)x 125mm

=2012500mm³

Answer:

B

Step-by-step explanation:

The slope of a line is written as a fraction of the vertical distance to the horizontal distance. The line drops down from (0,1) to (4,-2). This is a vertical distance of -3 and a horizontal distance of 4. The slope if the fraction -3/4.

Answer:

[tex] \sf \: b) \: \frac{ - 3 \: }{ 4} [/tex]

Step-by-step explanation:

The coordinates are,

→ x1 = 4, y1 = -2

→ x2 = -4, y2 = 4

Formula we use,

→ Slope(m) = (y2 - y1)/(x2 - x1)

Now the required slope will be,

→ m = (y2 - y1)/(x2 - x1)

→ m = (4 -(-2))/(-4 - 4)

→ m = (4 + 2)/-8

→ m = 6/-8

→ [ m = -3/4 ]

Hence, the option (b) is correct.

Hey there!

To solve this problem, we will take a look at the FOIL Method.

FOIL is a simple acronym that can be used to multiply binomials. It stands for:

F - Front

O - Outer

I - Inner

L - Last

See the image below for an example of how to use this in the given situation.

Front: Multiply the two terms out in the front.

[tex](-5a)(-4a) = 20a^2[/tex]

Outer: Multiply the two terms on the outsides.

[tex](-5a)(3)=-15a[/tex]

Inner: Multiply the two terms on the insides.

[tex](6)(-4a)=-24a[/tex]

Last: Multiply the two terms in the back.

[tex](6)(3)=18[/tex]

Now, we add all of our answers from above:

[tex]20a^2-15a-24a+18[/tex]

Simplify by combining like terms:

[tex]20a^2-39a+18[/tex]

There's our answer!

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Statistics on women in politics highlight that woman - who make up over 50 percent of the U.S. population - are substantially lag in high government positions.

In U.S. the population of Women are 50.8 percent. Approximately, 60 percent of women have their undergraduate degree, and 60 percent of women have their master's degree. They are very well educated. They earn almost 60 percent of law degrees.

But, when it comes to representation in high government positions, they substantially lag behind men. There are only 14.6 percent of executive officers, they hold only 24.2 percent of state legislative seats. They hold only 18.5 percent of congressional seats, and they are just 20 percent of U.S. senators.

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Answer:

Step-by-step explanation:Answer:it Varys depending on the type of problem

Step-by-step explanation:Answer:

It Varys depending on what type of multi step problem

Step-by-step explanation:

if it has parentheses () then you do whatever problem is in the parentheses next is exponents which is the number of times a number is multiplied by itself the next thing you want to do is multiplication and division from left to right the last thing you will do for a multi step problem is Addition and subtraction from left to right always remember P. E.M.D.A.S for parentheses, exponents, multiplication, division, addition and subtraction.

The linear equation in terms of the variable R is determined as x = R/10.

Given data:

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

The given equation is:

R = x + 9x

First, let's combine the like terms on the right side of the equation:

R = 1x + 9x

R = 10x

Now, we want to solve for x. To isolate x, divide both sides of the equation by 10:

R/10 = x

So, the solution for x is:

x = R/10

Hence, the expression for in terms of R is x = R/10.

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Part(A) Leslie's initial investment was $500 and

Part(B) The quarterly interest rate is 10.4 %

What is compound interest?

Compound interest is the interest calculated on the principal amount , which also considers all the accumulated interest of previous periods of deposit or loan.

If P is the principal amount and rate of compound interest is r  then after t years of time , the present amount (if the interest is compounded annually) will be = P(1+(r/100))^n

If the interest is compounded quarterly, then the present amount be A

Where A = [tex]P (1+\frac{r/4}{100} )^{4t}[/tex]

Given that Leslie invests in a bank that earns interest quarterly , and account balance after t years is given as 500(1.026)^(4t)

A= [tex]P (1+\frac{r/4}{100} )^{4t} = 500(1.026)^{4t\\[/tex]

Comparing both sides we get P = 500

And 1+(r/400)=1.026

(r/400)=1.026-1

(r/400)=.026

r=400(0.26) = 10.4 %

Therefore , Leslie's initial investment was $500 and the quarterly interest rate is 10.4 %

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Answer:

0.84

4.48

5.32

Step-by-step explanation:

Answer:

see below

Step-by-step explanation:

angle e is a vertical angle(each of the pairs of opposite angles made by two intersecting lines.) of 114 so e=114 and angle d is the vertical angle of 22 so d=22. and finally angles d+f+e=180

114+22+?=180

?=180-114-22

?=180-136

?=44

e=144

d=22

f=44

The sample proportion, p-hat, of engineers who have master's degrees is   68.5% out of 200 engineers.

p-hat proportion:

In this proportion,  "p" denotes the probability of a certain event occurring or a certain parameter being true for a certain population, but when a population is large, it may be impractical or impossible to measure it directly. So, we have used the proportion for that cases.

The general form for calculating p-hat proportion is,

[tex]\hat{p}=\frac{x}{y}[/tex]

where

x  is the number of successes in the sample, and

y is the size of the sample.

Given,

In a random sample of 200 engineers, 137 have a master's degree.

Here we need to find the the sample proportion, p-hat, of engineers who have master's degrees

According to the question,

x = 137 (number of successes in the sample)

and y = 200 (size of the sample)

Now apply the value on the formula then we get,

[tex]\hat{p}=\frac{137}{200}[/tex]

So, the value of p-hat is

[tex]\hat{p}=0.685[/tex]

The results are usually reported as a percentage, which in this case would be

=> 0.685 x 100 = 68.5%

Therefore, the sample proportion, p-hat, of engineers who have master's degrees is 68.5% out of 200 engineers.

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Answer:

Step-by-step explanation:A. ​Solution:

So we know that Ann and Cammy are playing Chess, and Stephen is playing by himself, which would mean he is playing -ONE-player games. So we have Rake and Dora, when you see their names, it creates a word. Cammy, Ann, Rake, Dora, and Stephen.

                                                                                                                                          C           A      R        D              S

So Rake and Dora are playing cards. But what kind of cards? The ONE is spotlighted for clues, we have Spanish. So -ONE- in Spanish is UNO. If you search UNO, its a card game, TAAAAADDDDDDDDDAAAAAAAAA.

The population parameter being estimated is the confidence coefficient.

The confidence coefficient is the confidence level stated as a proportion, rather than as a percentage. For example, if you had a confidence level of 99%, the confidence coefficient would be . 99. In general, the higher the coefficient, the more certain you are that your results are accurate.

probability is the likelihood that something will occur. When we don't know how an event will turn out, we can discuss the likelihood or likelihood of several outcomes. Statistics is the study of events that follow a probability distribution.

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

Hence, The probability that the interval estimation procedure will generate an interval that does not contain the actual value of the population parameter being estimated is the confidence coefficient.

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Answer:

No, because there is an output value with more than one input value.

Step-by-step explanation:

If you are using the same function equation, than you should not get the same output if you use two different inputs.

The expression will be 0.01

Simplifying an expression is just another way to say solving a math problem. When you simplify an expression, you're basically trying to write it in the simplest way possible. At the end, there shouldn't be any more adding, subtracting, multiplying, or dividing left to do

Rewrite the expression using the negative exponent rule b

b₋ⁿ= 1/b-ⁿ

⁺1/10²

Raise

10

to the power of

2

The result can be shown in multiple forms.

Exact Form:

−

1/100

Decimal Form:

−

0.01

So therefore the expression will be 0.01.

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Answer:

Step-by-step explanation:

The value of an item is greater than or equal to 5. This statement is represented by the inequality [tex]x\geq 5[/tex] .

An inequality is a mathematical relation which compares the values of two different entities.

The various symbols used in expressing inequalities are

Linear inequalities in one variable are represented on the number line.

For example: a>100 represents all numbers greater than 100 along the number line

Linear inequalities in two variables are represented as a region in a cartesian plane.

For example: 2x+3y<6 represents a region below the straight line 2x+3y=6.

The given statement denotes that the value of the item is greater than or equal to 5.

Therefore the required inequality is : [tex]x\geq 5[/tex].

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Answer:

no

Step-by-step explanation:

an equation must and always have an equal sign(=) otherwise it is an expression e.g. 2x-3y or x-2

an equation will look like this: a=b or other equations

Answer:-4

Step-by-step explanation:

The current percentage in comparison to in the year 2000 is 88.22%.

We are given the percentage of death in the year 2000, 2015 and the difference. Now, we have to find the percentage of donors between change and the original deaths in the year 2000.

To find this, we will use the following formula -

Percentage change = Difference between the percentage change in the year 2000 to 2015 ÷ Percentage of deaths in the year 2000 ×100

Now, keep the values in formula to find the percentage change.

Percentage change = [tex]\frac{8.24}{9.34} *100[/tex]

Performing division to find the percentage change

Percentage change = 0.882*100

Further performing multiplication to get the answer in the form of percentage

Percentage change = 88.22%

Hence, the comparison of difference with the percentage of donors dying from drug overdoses in 2000 is 88.22%.

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Answer:

To make AEH(triangle) do a vertical cut from A to H

Step-by-step explanation:

Answer:

33

Step-by-step explanation:

4+10+12+7

The answer of [tex](4)(4) -4(-5)(-1)[/tex] is [tex]-4[/tex]

We are supposed to find the answer of [tex](4)(4) -4(-5)(-1)[/tex].

This question is a classic example of the BODMAS rule in mathematics.

According to this rule, first we solve the sum inside bracket (be it any operation like division, multiplication, addition or subtraction) then division operation if present in the question followed by multiplication then addition and followed by subtraction.

Here in the question given [tex](4)(4) -4(-5)(-1)[/tex], we use BODMAS to solve it.

Let x be the answer of the above question, Therefore

[tex]x=(4)(4) -4(-5)(-1) \\x=(4*4)-4(5)\\x=(16)-(20)\\x=(16-20)\\x=-4[/tex]

Therefore[tex](4)(4) -4(-5)(-1)[/tex] = -[tex]4[/tex]

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