Solve for X. Show work

Answer:

x>5_1 =4ans answer is these

Out of 126, 2/9 of them are taking geometry , 3/7 of the students are males ,number of female students taking geometry are 16.

As given in the question,

Total number of students = 126

Number of Students taking geometry = (2/9) × 126

                                                           = 28

Number of male students taking geometry= (3/7) × 28

                                                                  = 12

Number of female students taking geometry= 28 - 12

                                                                     = 16

Therefore, out of 126, 2/9 are taking geometry , 3/7 are males ,number of female students taking geometry are 16.

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Salma can rent the car for at most 5 days while driving 275 miles

Although part of your question is missing, you might be referring to this full question: A rental car company charges $22.50 per day to rent a car and $0.10 for every mile driven. Salma wants to rent a car, knowing that: she plans to drive 275 miles. She has at most $140 to spend. Write and solve an inequality which can be used to determine, the number of days Salma can afford to rent the car while staying within her budget

The equation which addresses this problem is:

22.5x + 0.10(275) <=140

Let x be the number of days Salma can afford to rent the car

Per day rent of the car = $22.5

Cost per mile = $0.10

Plan to drive = 275 miles

Budget with Salma = $140

Equation:

22.5x + 0.10(275) <= 140

Solving the equation we get x <= 5

So, Salma can rent the car for at most 5 days while driving 275 miles

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Sal sold 7 pairs of type a socks and 9 pairs of type b socks

Let the number of type a socks sold by Sal be x

Let the number of type b socks sold by Sal be y

The selling price of type a socks = 45

The selling price of type b socks = 30

Total pairs sold = 16

Total income = 585

Therefore, the equations will be

x + y = 16-------(1)

45x + 30y = 585--------(2)

Multiplying equation (1) by 30 we get

30x + 30y = 480 ------(3)

Equating equations (2) and (3) we get,

15x = 105

x = 7

Putting x = 7 in (1) we get

y = 9

Sal sold 7 pairs of type a socks and 9 pairs of type b socks  

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Answer: 5b-40

Step-by-step explanation:

You have to distribute the 5 into both of the variables in the parenthesis

Hope this helps!

Answer: she must sell 6 large photos and 6 small photos

Step-by-step explanation: and how I knew that is I multiplied 6 40 times and that gives you 240 and if you multiply 6 ten times that gives you 60 so 240 plus 60 is $300

Answer:

ydiyetd5dtd7rowo47do7tso47syjfzj4tsuryusu6eaitddtsie6i64so7rso6ro6zoyds7orsoslu4sp

Answer:

15

Step-by-step explanation:

105/7

15

Hope It Helps

Answer:

One solution is 64, 36, and 25

Another method is 25+36+64

Step-by-step explanation:

Slope of line PQ = -3

Slope of line RS = 3

They are neither parallel nor perpendicular.

If two lines are parallel to each other, they would have the same slope value.

If two line are perpendicular, the slope value of one would be the negative reciprocal of the other.

Slope = change in y / change in x.

Slope of line PQ = (-1 - 14) / (2 - (-3))

Slope of line PQ = -15/5 = -3

Slope of line PQ = -3

Slope of line RS = (-10 - 8) / (-2 - 4)

Slope of line RS = -18/-6

Slope of line RS = 3

The slopes of both lines are different, and are not negative reciprocals of each other, therefore, they are neither parallel nor perpendicular.

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Answer:

x = 17/5

Step-by-step explanation:

5x + 3 = 20

5x + 3-3 = 20 - 3

5x = 17

divide both by 5

The likelihood of any two different face values occurring exactly twice is 0.0475.

Describe probability using an example?

Two pairs

two pairs = 13C2 *4C2 * 4C2 * 11C1 * 4C1 = 123552

P( two pairs) = 123552/2598960 = 0.0475

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The complete question is -

In a poker game, five cards are dealt at random from an ordinary deck of 52 playing cards. Find the probability of gettingtwo pairs (any two distinct face values occurring exactly twice)

Answer:

60.2 is the average

Step-by-step explanation:

add all numbers together to get: 301

divide 301 by 5 because there are 5 numbers total to get: 60.2

Answer:

2/11, 0.18, 18%

5 + 4 + 6 + 7 = 22

and 4 of those are 4 orange candies

4/22 = 2/11

The given expression is simplified as 6x+3y³. Therefore, option A is the correct answer.

The given expression is [tex]\frac{18x^{3}y^{2}+9x^{2} y^{5}}{3x^{2} y^{2} }[/tex].

We need to divide and simplify the given expression.

Division of polynomials by monomial means dividing the polynomials which are written as numerators by a monomial which is written as denominators to find their quotient.

Split the denominators to each numerator and cancel out the common terms and simplify.

Now, [tex]\frac{18x^{3}y^{2}+9x^{2} y^{5}}{3x^{2} y^{2} }=\frac{18x^{3}y^{2}}{3x^{2} y^{2}} +\frac{9x^{2} y^{5}}{3x^{2} y^{2}}[/tex]

=6x+3y³

The given expression is simplified as 6x+3y³. Therefore, option A is the correct answer.

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y=-20, x=-1, c= -5

SOlution :

three-by-three systems:

In order to solve systems of equations in three variables, known as three-by-three systems, the primary goal is to eliminate one variable at a time to achieve back-substitution. A solution to a system of three equations in three variables x,y,z

is called an ordered triple.

To find a solution, we can perform the following operations:

Interchange the order of any two equations.

Multiply both sides of an equation by a nonzero constant.

Add a nonzero multiple of one equation to another equation.

HOW TO: GIVEN A LINEAR SYSTEM OF THREE EQUATIONS, SOLVE FOR THREE UNKNOWNS.

Pick any pair of equations and solve for one variable.

Pick another pair of equations and solve for the same variable.

You have created a system of two equations in two unknowns. Solve the resulting two-by-two system.

Back-substitute known variables into any one of the original equations and solve for the missing variable.

3⁢x+6⁢y−5⁢z=29...(1)

-9⁢x+y+4⁢z=9...(2)

-8⁢x+7⁢y+5⁢z=4...(3)

Solving 1&2

3x+6(9-4z+9x)-5z=29

3x+54-24z+54x-5z=29

57x+54-29-29z=0

57x+25-29z=0

57x-29z=25...(3)

Solving  2& 3

-8x+7(9-4z+9x) +5z=4

-8z+63-28z+63x+5z=4

55x-23z-59=0 ..(4)

Solving 3 & 4

57x-29z=25...(3)

55x-23z-59=0 ..(4)

(55x29-57x23)x=59x23-25x23

-2906x = 2906

x=-1

putting it on equation 4

55x-23z-59=0 ..(4)

55(-1)-23z-59=0 ..(4)

z= - 5

-9⁢(-1)+y+4⁢(5)=9.

9+y+20=9

y=9-20-9

y=-20

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Answer:

(-4, 1, -7)

Step-by-step explanation:

and got it right on edmentum

Descriptive statistics are those that involve gathering, arranging, and summarizing data.

Brief informational coefficients known as descriptive statistics are used to sum up a given data set, which may be a sample of a population or a representation of the entire population. Measures of the central tendency or measures of variability make up descriptive statistics (spread).

A descriptive statistic's main function is to summarize data. Only the data set from which they were derived are statements made by descriptive statistics; they never extend further than the data you have.

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Answer: 7.2

Step-by-step explanation: 2.4(3) is really just 2.4 * 3 so 2.4 times 3 is 7.2.

Answer:

13.824

Step-by-step explanation:

Raise 2.4 to the power of 3.

Answer:

Step-by-step explanation:

Given three relations between the costs of balls, bats, and bases, you want to find the cost of each.

Solving three linear equations in three unknowns can be accomplished easily by any number of calculators, apps, or spreadsheets. Here, we'll use an ad hoc solution.

Subtracting twice the third equation from the second, we have ...

  (4 balls + 8 bats + 2 bases) -(2(2 balls + 3 bats + 1 base) = 78 -2(33.60)

  2 bats = 10.80 . . . . . . . simplify

  1 bat = 5.40 . . . . . . divide by 2

Subtracting the second equation from the first, we have ...

  (10 balls +3 bats +2 bases) -(4 balls +8 bats +2 bases) = (99) -(78)

  6 balls -5 bats = 21 . . . . . simplify

  6 balls = 21 + 5(5.40) . . . . . add 5 bats and substitute their cost

  6 balls = 48 . . . . . . . . simplify

  1 ball = 8.00 . . . . . . . divide by 6

Using the last equation, we can find the cost of 1 base.

  1 base = 33.60 -2 balls -3 bats = 33.60 -2(8.00) -3(5.40)

  1 base = 1.40

The costs are ...

  1 ball: $8.00

  1 bat: $5.40

  1 base: $1.40

We need to know about rate of change to solve the problem. The rate of change of population between 2002 and 2004 is -6.098% . The rate of change of population between 2002 and 2006 is -4.88%

The rate of change of something can be calculated by dividing the difference between the final amount and the initial amount by the initial amount. Rate of change is usually calculated as a percentage. We can calculate rate of change of population per year or between any two years. In this question we need to find the rate of change between 2002 and 2004 and also between 2002 and 2006. The initial population in 2002 is 82 and in 2004 it is 77.

rate of change between 2002 and 2004=[tex]\frac{77-82}{82}[/tex]x100=[tex]\frac{-5}{82}[/tex]x100=-6.098%

rate of change between 2002 and 2006=[tex]\frac{78-82}{82}[/tex]x100=[tex]\frac{-4}{82}[/tex]x100=-4.88%

Therefore the rate of change of population between 2002 and 2004 is -6.098% and the rate of change of population between 2002 and 2006 is -4.88%, the rate of change is negative because the population decreases.

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Average speed of the train as it covered 30 kilometers in 8 minutes is equal to 139.8 miles per hour.

As given,

Total distance= 30 kilometers

Total time taken = 8 minutes

1 kilometer = 0.62137 miles

30 kilometers = 30 × 0.62137

                     = 18.641 miles

8 minutes = ( 8 / 60) hour

Average speed= total distance / total time taken

                                          = 18.641 / (8/60)

                                          = 139.8 miles/ hour

Therefore, average speed of the train as it covered 30 kilometers in 8 minutes is equal to 139.8 miles per hour.

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Answer:

1. 75/6 (improper fraction) = 12 3/6 (mixed number) = 12 1/2 (simplified)

2. 2/12 = 1/6 (simplified)

3. 12/72 = 1/6 (simplified)

Hope this helps :)

Answer:

[tex]\frac{5}{6} * 15 = 12\frac{1}{2}[/tex]

[tex]\frac{2}{3} * \frac{1}{4} = \frac{1}{6}[/tex]

[tex]\frac{4}{9} * \frac{3}{8} = \frac{1}{6}[/tex]

Step-by-step explanation:

[tex]\frac{5}{6} * 15 = \frac{5 * 15}{6} = \frac{75}{6}\\[/tex]

Reduce the fraction by diving both sides by the common factor.

[tex]\frac{75}{6} = \frac{75 / 3}{6/3} = \frac{25}{2}[/tex]

To convert the improper fraction to a mixed fraction, divide the numerator (25) by the denominator (2), put the whole part of the result in front and the remainder in place of the original numerator.

25 / 2 = 12 with remainder of 1

[tex]\frac{25}{2} = 12\frac{1}{2}[/tex]

[tex]\frac{2}{3} * \frac{1}{4} = \frac{2 * 1}{3 * 4} = \frac{2}{12} = \frac{2/2}{12/2} = \frac{1}{6}[/tex]

[tex]\frac{4}{9} * \frac{3}{8} = \frac{4 * 3}{9 * 8} = \frac{12}{72} = \frac{12 / 12}{72 / 12} = \frac{1}{6}[/tex]

It is claimed that the sample of participants is generalizable since it reflects the characteristics of the population.

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Those methods involving the collection, presentation, and characterization of a set of data in order to properly describe the various features of that set of data are called descriptive statistics.

Descriptive statistics:- Descriptive statistics helps to describe, summarize and organize the set of data efficiently and in an informative way, so that it'll be easier to make conclusion about the data in order to make rational decisions. This method describes the characteristics of a dataset.

Example:- The average test score for the students of a particular class, gives descriptive sense of the typical scores.

There are three types of descriptive statistics-

Thus we can conclude that, those methods involving the collection, presentation, and characterization of a set of data in order to properly describe the various features of that set of data are called descriptive statistics.

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the five prime number are 19,29,29,37,41

mean =sum of observations / total number of observation

         = 19+29+29+37+41  /5

          = 155/5

          =31

median = (n+1) / 2  th term       n is number of term and n is odd

               = (5+1) /2 th term

                 = 3 rd term

                 = 29

mode = the value that appears most in the data

         = 29

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Answer:

#9: B

#10: D

Step-by-step explanation:

#9 had biggest scientific notaiton

#10 had smallet scientific notaiton and numbeer

Answer:

9. B

10. D

Step-by-step explanation:

a. 5406000000

b. 56040000000

c. 550400000

d. 6503000000

a. 900000

b. 120000

c. 3010000000

d. 19010

Answer:

√18 is between 4.2 and 4.3

√52 is equivalent to 2√13

......