Distance = (number of gallons)(rate in mpg)
let the number of gallons used by the gas-guzzler be x
then the number gallons used by the nice car = 40-x
20x + 40(40-x) = 1200
solve for x
A family had two cars. The first car fuel efficiency of 20 miles per gallon of gas and the second car has a fuel efficiency of 40 miles per gallon of gas. During one particular week the two cars went a combined Total of 1100 miles for a total gas consumption of 40 gallons how many gallons were consumed by each of the two cars that week?
1 answer
1 answer