02-03-2018
Mathematics

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How do I do 21? (Will mark brainlest for explaining)

How do I do 21 Will mark brainlest for explaining class=

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jinc0930 jinc0930

02-03-2018

let's say the number is x
75%of x is 15
75%x=15
0.75x=15
x=15/0.75
x=20

or you can say 3/4x=15
x=15*4/3
x=20

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