Question

if 9 upon 5 of a number exceeds 5 upon 7 of that number by 70 find the number​

Answer 1

Answer

let the number be x

according to the condition

9/5x=5/7x+70

9/5x-5/7x=70

63x-35x/35=70

28x=70*35

x=70*35/28

x=175/2

x=87.5

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Answer 2

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