SOLUTION: In a family there are two cars. The sum of the average miles per gallon obtained by the two cars in a particular week is 50 . The first car has consumed 25 gallons during that wee
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Question 247211: In a family there are two cars. The sum of the average miles per gallon obtained by the two cars in a particular week is 50 . The first car has consumed 25 gallons during that week, and the second has consumed 30 gallons, for a total of 1400 miles driven by the two cars combined. What was the average gas mileage obtained by each of the two cars in that week?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
let a =mpg one car and b= mpg the other
(a+b)=50
b=50-a
25a+30(50-a)=1400
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