document.write( "Question 1124176: A family has two cars. During one particular week,the first car consumed 25 gallons of gas and the second consumed 40 gallons of gas. The two cars drove a combine total of 1875 miles, and the sum of their fuel efficiencies was 60 miles per gallon. What were the fuel efficiencies of each of the cars that week? \n" ); document.write( "

Algebra.Com's Answer #740534 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
Fuel efficiency is a separate constant for each car.
\n" ); document.write( "MILES per GALLON is the unit for fuel efficiency in the example.\r
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\n" ); document.write( "\n" ); document.write( " $\"R=D%2FV\"$ , fuel efficincy, distance, volume\r
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\n" ); document.write( "\n" ); document.write( "You could use two variables, but just one variable is possible and the work may be easier.\r
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document.write( "            FUEL EFFICIENCY         VOLUME          DISTANCE\r\n" );
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document.write( "firstcar       x                       25             25x\r\n" );
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document.write( "secondcar     60-x                     40            40(60-x)\r\n" );
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document.write( "sum           60                                       1875\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solve this: $\"25x%2B40%2860-x%29=1875\"$ \n" ); document.write( "

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