Page A family has two cars. The first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of 30 miles per...

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A family has two cars. The first car has a fuel efficiency of 20

miles per gallon of gas and the second has a fuel efficiency of 30

miles per gallon of gas. During one particular week, the two cars went a combined total of 1400

miles, for a total gas consumption of 55

gallons. How many gallons were consumed by each of the two cars that week?