document.write( "Question 1168681: Kira bought a desktop computer and a laptop computer. before finance charges, the laptop cost $200 less than the desktop. she paid for the computer using two different financing plans. for the desktop the interest rate was 9% per year, and for the laptop it was 7% per year the total finance charges for one year were $306 how much did each computer cost before finance charges? \n" ); document.write( "

Algebra.Com's Answer #793263 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Let x be the price for the desktop comp (before financial charges)\r\n" );
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document.write( "Then the price for the laptop is (x-200)  dollars, according the condition.\r\n" );
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document.write( "Now you write the TOTAL financial charges equation\r\n" );
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document.write( "    0.09*x + 0.07*(x-200) = 306  dollars.\r\n" );
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document.write( "From the equation\r\n" );
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document.write( "    x =  = 2000  dollars.\r\n" );
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document.write( "ANSWER.  $2000 for the desktop comp and $1800 for the laptop.\r\n" );
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