annelisemathbrain annelisemathbrain

02-03-2017
Mathematics

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Fifteen over twenty five equals nine over what?

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helpmehplzz helpmehplzz

02-03-2017

I thought it said 21 pilots at first

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Аноним Аноним

02-03-2017

this is proportion
15/25 = 9/x - given
15x = 225 - cross multiply
x = 15 - divide by 15

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