mjacobs911 mjacobs911

26-06-2017
Mathematics

contestada

If 28% of a sum is $100.80, what is the sum?

Respuesta :

biggmack95 biggmack95

26-06-2017

28.22
Take .28 and multiply it by 100.8 to find the sum

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nybrwag nybrwag

26-06-2017

You can cross multiply to find this. Put the amount you're trying to find (x) over 100.80, and set it equal to 28/100.
x/100.8 = 28/100
100.8 x 28 = 100x
2822.4 = 100x
/100
28.224 = x

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