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Mathematics 13 Online
OpenStudy (anonymous):

Need Help! will reward! During one particular week, the first car consumed 35gallons of gas and the second consumed 25 gallons of gas. The two cars drove a combined total of 2050 miles, and the sum of their fuel efficiencies was 70 miles per gallon. What were the fuel efficiencies of each of the cars that week?

OpenStudy (mertsj):

x=miles driven by first car y = miles driven by second car x+y=2050 x/25+y/35=70 Solve the system.

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