document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=525640>Question 525640</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone help me solve this? Thank you.\r<BR>\n" );
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document.write( "Greg bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $200 less than the desktop. He paid dot the computer using two different financing plans. For the desktop the interest rate was 8% per year, and for the laptop it was 6.5% per year. The total finance charges for one year were $335. How much did each computer cost before finance charges? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #348177 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=348177\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Greg bought a desktop computer and a laptop computer. <BR>\n" );
document.write( "Before finance charges, the laptop cost $200 less than the desktop.<BR>\n" );
document.write( "Let desktop cost be x<BR>\n" );
document.write( "Then laptop cost is x-200<BR>\n" );
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document.write( "He paid for the computers using two different financing plans. <BR>\n" );
document.write( "For the desktop the interest rate was 8% per year, and for the laptop it was 6.5% per year.<BR>\n" );
document.write( "Interest on desktop = 0.08x<BR>\n" );
document.write( "Interest on laptop = 0.065(x-200)<BR>\n" );
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document.write( "The total finance charges for one year were $335. \r<BR>\n" );
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document.write( "How much did each computer cost before finance charges?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "interest + interest = interest<BR>\n" );
document.write( "0.08x + 0.065(x-200 = 335<BR>\n" );
document.write( "Multiply thru by 1000 to get:<BR>\n" );
document.write( "80x + 65x - 65*200 = 335000<BR>\n" );
document.write( "----<BR>\n" );
document.write( "145x = 348000<BR>\n" );
document.write( "x = $2400 (cost of the desktop)<BR>\n" );
document.write( "x-220 = $2200 (cost of the laptop)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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