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03-11-2016
Mathematics

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$22.10 is 15% of what number?

Respuesta :

03-11-2016

22.10 is = 15% of the price

x = 100% of the price (original price)

15 = 22.10
100 x

now just use cross multiplication.

15x = 22.10 · 100

solve for x.

15x = 2210
15 15

x = 147.33333333 since the 3's go on forever you can simply put it into a fraction

x = 147 3
9

whenever there is a repeating number you can put it into a fraction but putting the repeating number over a 9

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