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15 is 20% of what number?

A.3

B.12

C.30

D.75

Sagot :

Answer:

D.75 is the answer

Step-by-step explanation:

We already have our first value 15 and the second value 20. Let's assume the unknown value is Y which answer we will find out.

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 115 = 20% × Y

STEP 215 =

20

100

× Y

Multiplying both sides by 100 and dividing both sides of the equation by 20 we will arrive at:

STEP 3Y = 15 ×

100

20

STEP 4Y = 15 × 100 ÷ 20

STEP 5Y = 75

Finally, we have found the value of Y which is 75 and that is our answer.

You can easily calculate 15 is 20 percent of what number by using any regular calculator, simply enter 15 × 100 ÷ 20 and you will get your answer which is 75

Answer:

75

Step-by-step explanation:

15 is 20% of What Number?

15 is 20% of What Number? - 15 is 20% of 75. 100% of 75 is 75, therefore 20 percent of 75 equals 15. To learn how to solve 15 is 20 percent of what number, see the step by step instructions below.

15 is 20 Percent of What Number?

75

Formula = Number x 100

Percent = 15 x 100

20 = 75

Following shows the steps on how to derive this formula and find out 20% of what number is 15.

Step 1: If 20% of a number is 15, then what is 100% of that number? Setup the equation.

15

20% = Y

100%

Step 2: Solve for Y

Using cross multiplication of two fractions, we get

20Y = 15 x 100

20Y = 1500

Y = 1500

100 = 75

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