SOLUTION: A family has two cars. The first car has a fuel efficiency of 35 miles per gallon of gas and the second has a fuel efficiency of 40 miles per gallon of gas. During one particular w
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Question 1105876: A family has two cars. The first car has a fuel efficiency of 35 miles per gallon of gas and the second has a fuel efficiency of 40 miles per gallon of gas. During one particular week, the two cars went a combined total of 1850 miles, for a total gas consumption of 50 gallons. How many gallons were consumed by each of the two cars that week? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! x gallons used by first car
50-x gallons used by the second car
35x+(50-x)40=1850, mileage equation
35x+2000-40x=1850
-5x=-150
x=30 gallons used by first car or 1050 miles
50-x=20 gallons used by second car or 800 miles
They add to 1850 miles
