guess and check with algebra

Algebra
Tutor: None Selected Time limit: 1 Day

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.

Jun 8th, 2015

Thank you for the opportunity to help you with your question!

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

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 8th, 2015

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