70 is 40% of what number?

1 Answer
MeneerNask
Sep 14, 2016

If 70harr40% then what is Xharr100%. We use ratio's

Explanation:

70/(40%)=X/(100%)-> cross-multiply:

40%*X=70*100%->X=(70*100cancel%)/(40cancel%)=175

Check your answer:
(40cancel%)/(100cancel%)*175=70 -- check!

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