Question

3/4of a number is 20 .what is the number
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Answer 1

Step-by-step explanation:

To find 3/4 of 20 you can use proportion system

3:4 = x : 20

So you put first the part (3) in ratio with the total (4) equal to a part that you want to find denoted by x in ratio with the total (20). Using the properties of multiplying the middle terms between each other and the extremes by each other you get

4x= 20 • 3

Make x the subject

x= (20•3)/4

x= 60/4

x=15

3/4 of 20 is 15

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Answer 2

Answer:

3/4 of the number 20 is fifteen (15)