SOLUTION: A family has two cars. During one particular week, the first car consumed 25 gallons of gas and the second consumed 40 gallons of gas. The two cars drove a combined total of 1600 m

Question 1122623: A family has two cars. During one particular week, the first car consumed 25 gallons of gas and the second consumed 40 gallons of gas. The two cars drove a combined total of 1600 miles, and the sum of their fuel efficiencies was 55 miles per gallon. What were the fuel efficiencies of each of the cars that week?
Answer by josgarithmetic(39623) (Show Source): You can put this solution on YOUR website!
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During one particular week, the first car consumed 25 gallons of gas and the second consumed 40 gallons of gas. The two cars drove a combined total of 1600 miles, and the sum of their fuel efficiencies was 55 miles per gallon. What were the fuel efficiencies of each of the cars that week?
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, fuel efficiency R in miles per gallons

              FUEL EFFICIENCY   VOLUME       DISTANCE

FirstCar         x               25            25x

SecondCar        y               40            40y

Totals          55               65            1600

-----------miles per gallon, the SecondCar
-------------------FirstCar
.
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