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 15 miles per gallon of gas. During one particular week, the two cars went a combined total of 1325 miles, for a total
gas consumption of 55 gallons. How many gallons were consumed by each of the two cars that week?
+36915 35 x + 15 (55-x) = 1325 solve fo x, the gallons used by the 35 mpg car.... then the other is 55-x
