document.write( "Question 1139036: Two mechanics worked on a car. The first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. Together they charged a total of $2000. What was the rate charged per hour by each mechanic if the sum of the two rates was $210 per hour? \n" ); document.write( "

Algebra.Com's Answer #756831 by ikleyn(52851) $\"\"$ $\"About$

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document.write( "Let x be the rate of the first mechanics, in dollars per hour. \r\n" );
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document.write( "Then the rate of the second mechanics is (210-x) dollars per hour.\r\n" );
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document.write( "The total charge for the entire work is $2000\r\n" );
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document.write( "    5x + 15*(210-x) = 2000.\r\n" );
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document.write( "From the equation, express x and calculate the answer\r\n" );
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document.write( "    x =  = 115.\r\n" );
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document.write( "ANSWER.  First mechanics charges  $115 per hour;  second charges  210 - 115 = 95 dollars per hour.\r\n" );
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document.write( "CHECK.  5*115 + 15*95 = 2000 dollars.    ! Correct !\r\n" );
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