document.write( "Question 1153396: A repairman purchased several furnace-blower motors for a total cost of $450. If his cost per motor had been $5 less, he could have purchased 1 additional motor. How many motors did he buy at the regular rate? \n" ); document.write( "

Algebra.Com's Answer #775612 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Let x be the actual price per motor.\r\n" );
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document.write( "Then hypothetical price would be (x-5) dollars.\r\n" );
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document.write( "The equation to find x, from the condition, is\r\n" );
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document.write( "     -  = 1.     (1)\r\n" );
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document.write( "You can solve it using formal algebra, but the solution is clear even without it:\r\n" );
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document.write( "    x = 50 dollars.      ANSWER\r\n" );
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document.write( "CHECK.  Check validity of the equation (1):   -  = 10-9 = 1.   ! Correct !\r\n" );
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