guess and check with algebra

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ybeevybir

Mathematics

Question Description

two cars have the same cruising range. Car A has a tank capacity that is 2.5 gallons bigger than car B's. If car B average's  43 miles per gallon and car A averages 36 miles per gallon, find the tank capacity of each car.

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Explanation & Answer

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let the capacity for car B be x then  car a will be x+2.5

43x=36(x+2.5)

43x-36x=90

7x=90

x=90/7

x=12.86

capacity for B=12.86 and capacity for A=15.36

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athalnt (125)
UIUC

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