21 is 15% of what number?

1 answer:

7 0

You do it like this:
15/100 = 21/x and cross multiply like this:
15x = 2100 ((Divide by 15 on both sides)
x = 140 (This is your answer)
I hope this helps you! Have a great night!

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Hello from MrBillDoesMath!

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