75% of what number is 42?

Answers

Answer 1

Answer:

75 percent of the number 56 is 42.

Let the unknown number be x.

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Here, 75% of x is 42

75% of x= 42

75/100 ×x= 42

0.75x=42

x=42/0.75

x= 56

Therefore, 75 percent of the number 56 is 42.

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Answer 2

Answer:

Answer:

56

Step-by-step explanation:

$\bold{METHOD\ 1:}\n\n\begin{array}{ccc}100\%&-&x\n75\%&-&42\end{array}\qquad\text{cross multiply}\n\n75x=(100)(42)\n75x=4200\qquad\text{divide both sides by 75}\n\boxed{x=56}$

$\bold{METHOD\ 2:}\n\np\%=(p)/(100)\to75\%=(75)/(100)=0.75\n\n75\%\ of\ x\ is\ 42\to0.75x=42\qquad\text{divide both sides by 0.75}\n\n\boxed{x=56}$

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Tonya had her birthday party at the movies.It cost $27 for pizza and $8.50 per friend for the movie tickets. How many friends did tonya have at her party if she spent $78

Answers

she can bring 6 friends to the movies.

Tonya had 6 friends, 27$ + 8.50$ x 6 = $78

What is 503 rounded to the nearest hundred

Answers

To round 503 to the nearest hundred, you would round down to 500

You would have to round it down to 500

The cost of renting a bicycle is $9 for the first hour plus another $4 for eachadditional hour. Which of the following represents this situation, where Cis
the total cost of renting a bicycle for h hours?

Answers

The missing choices are:

A. C = 9h + 4

B. C = 4h + 9

C. C = 4(h - 1) + 9

D. C = 13h

C = 4(h - 1) + 9 represents this situation ⇒ answer C

Step-by-step explanation:

The given is:

The cost of renting a bicycle is $9 for the first hour
Another $4 for each additional hour
C is the total cost of renting a bicycle for h hours

We need to find which of the following represents this situation

∵ The cost of renting a bicycle is $9 for the first hour

∵ Another $4 for each additional hour

∵ h represents the number of hours

- Add the cost of the first hour to the cost of the remaining hours

∵ The remaining hours = h - 1

∴ The cost of the remaining hours = 4(h - 1)

∵ C is the cost of renting the bicycle for h hour

- Add 9 to 4(h - 1) to find C

∴ C = 4(h -1) + 9

C = 4(h - 1) + 9 represents this situation

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How many faces edges vertices does a decagonal prism have ?

Answers

In a decagonal prism no. of
Edges=30
Faces=12
Vertices=20

A decagonal prism has-

$Faces = 15$

$Vertices = 11$

$Edges = 10$

Hope it helps!!!

Pat read 248.2 pages during a 4.25 hour one afternoon. how many pages did he read each hour if he read the same number of pages each hour

Answers

Simple! Divide 248.2 by 4.25, and you get 58.4. So basically, Pat read 58.4 pages per hour.

if he reads the same number of pages each hour the answer will be 1054.85

Solve 25+10*(12-x)=5*(2x-7)

Answers

Simplifying25 + 10(12 + -1x) = 5(2x + -7)
25 + (12 * 10 + -1x * 10) = 5(2x + -7)
25 + (120 + -10x) = 5(2x + -7)

Combine like terms: 25 + 120 = 145145 + -10x = 5(2x + -7)

Reorder the terms:
145 + -10x = 5(-7 + 2x)
145 + -10x = (-7 * 5 + 2x * 5)
145 + -10x = (-35 + 10x)
Solving145 + -10x = -35 + 10x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-10x' to each side of the equation.
145 + -10x + -10x = -35 + 10x + -10x
Combine like terms: -10x + -10x = -20x145 + -20x = -35 + 10x + -10x

Combine like terms: 10x + -10x = 0145 + -20x = -35 + 0145 + -20x = -35
Add '-145' to each side of the equation.145 + -145 + -20x = -35 + -145

Combine like terms: 145 + -145 = 00 + -20x = -35 + -145-20x = -35 + -145

Combine like terms: -35 + -145 = -180-20x = -180
Divide each side by '-20'.
x = 9
Simplifyingx = 9.
Hope this helps you ! =')

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