document.write( "Question 1180010: A family has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1325 miles, for a gas consumption of 65 gallons. How many gallons were consumed by each of the two cars that week? \n" ); document.write( "

Algebra.Com's Answer #809579 by ikleyn(52803) $\"\"$ $\"About$

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\n" ); document.write( "A family has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas
\n" ); document.write( "and the second has a fuel efficiency of 15 miles per gallon of gas.
\n" ); document.write( "during one particular week, the two cars went a combined total of 1325 miles,
\n" ); document.write( "for a gas consumption of 65 gallons. How many gallons were consumed by each of the two cars that week?
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document.write( "Let x be the number of gallons were consumed by the first car.\r\n" );
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document.write( "Then the number of gallons consumed by the second car is  (65-x).\r\n" );
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document.write( "The distance traveled by the first car is 25x miles.\r\n" );
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document.write( "The distance traveled by the second car is 15*(65-x) miles.\r\n" );
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document.write( "The total distance equation is\r\n" );
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document.write( "    25x + 15*(65-x) = 1325  miles.\r\n" );
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document.write( "From this equation, express x and calculate\r\n" );
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document.write( "    x =  = 35.\r\n" );
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document.write( "ANSWER.  The first car consumed 35 gallons of fuel.  The second car consumed the rest (65-35) = 30 gallons.\r\n" );
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\n" ); document.write( "\n" ); document.write( "See the lesson\r
\n" ); document.write( "\n" ); document.write( " - Miles per gallon effectiveness and moving car\r
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