document.write( "Question 1150271: 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 1150 miles, for a total gas consumption of 50 gallons. How many gallons were consumed by each of the two cars that week?\r
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Algebra.Com's Answer #771661 by josgarithmetic(39617)\"\" \"About 
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document.write( "                          (gallons)    (miles)\r\n" );
document.write( "              efficiency   volume      distance\r\n" );
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document.write( "firstcar        20         50-x       20(50-x)\r\n" );
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document.write( "secondcar       30          x          30x\r\n" );
document.write( "   \r\n" );
document.write( "TOTALS                      50         1150\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solve the equation, \"20%2850-x%29%2B30x=1150\". \n" ); document.write( "
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