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Mathematics, 07.07.2019 00:00 meep26wesley

Afamily has two cars. during one particular week, the first car consumed 30 gallons of gas and the second consumed 40 gallons of gas. the two cars drove a combined total of 1800 miles, and the sum of their fuel efficiencies was 50 miles per gallon. what were the fuel efficiencies of each of the cars that week?

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