ChrystalHope ChrystalHope

02-06-2016
Mathematics

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Aldo drove 200 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 420 miles?

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apologiabiology apologiabiology

02-06-2016

distance/fuel is constant
200/9=420/x
find x
times 9x both sides
200x=3780
divide both sides by 200
x=18.9
18.9 gallons

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