document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1114549>Question 1114549</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A computer store manager buys several computers of the same model for $10,800. The store can regain this investment by selling all but 5 of the computers at a profit of $360 per computer. To do this, how many computers must be sold, and at what price?\r<BR>\n" );
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document.write( "______computers at $_____ per computer  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #729484 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=729484\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A computer store manager buys several computers of the same model for $10,800. The store can regain this investment by selling all but 5 of the computers at a profit of $360 per computer. To do this, how many computers must be sold, and at what price?<BR>\n" );
document.write( "# of computers bought:: \"x\"<BR>\n" );
document.write( "cost of each computer:: 10800/x<BR>\n" );
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document.write( "Equation: (x-5)[(10800/x)+360] = 10,800<BR>\n" );
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document.write( "[10800+ 360x-5(10800/x)-1800] = 10,800<BR>\n" );
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document.write( "360x - 54000/x -1800 = 0<BR>\n" );
document.write( "-54000 - 1800x + 360x^2 = 0<BR>\n" );
document.write( "x^2 - 5x - 150 = 0<BR>\n" );
document.write( "(x-15)(x+10) = 0<BR>\n" );
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document.write( "Positive solution:<BR>\n" );
document.write( "x = 15<BR>\n" );
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document.write( "Ans:: x-5 = 15-5 = 10 must be sold<BR>\n" );
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document.write( "Selling price when x = 15<BR>\n" );
document.write( "[(10800/x)+360] = 720+360 = $1080<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "______computers at $_____ per computer  </SPAN>\n" );
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