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OpenStudy (teller):
Would someone care to please help me ? A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 20 miles per gallon of gas. During one particular week, the two cars went a combined total of 1300 miles, for a total gas consumption of 40 gallons. How many gallons were consumed by each of the two cars that week?
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