document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=387184>Question 387184</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Good evening! I have one more word problem that I am working on tonight that I hope someone can help me with.  \r<BR>\n" );
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document.write( "CD Sales:  The total weekly sales for a newly released rock CD increased each week.  At the same time, the total weekly sales for a newly released rap CD decreased each week.  Models that approximate the total weekly sales S (in thousands of units) for each CD are:\r<BR>\n" );
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document.write( "			S =  25x + 100	Rock CD		<BR>\n" );
document.write( "			S = -50x + 475  Rap CD\r<BR>\n" );
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document.write( "where x represents the number of weeks each CD was in stores, with x = 0 corresponding to the CD sales on the day each CD was first released in stores.  \r<BR>\n" );
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document.write( "	After how many weeks will the sales for the two CDs be equal?\r<BR>\n" );
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document.write( "Thanks so much! <BR>\n" );
document.write( "Jim </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #273674 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=273674\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> S = 25x + 100 Rock CD <BR>\n" );
document.write( "S = -50x + 475 Rap CD <BR>\n" );
document.write( "where x represents the number of weeks each CD was in stores, with x = 0 corresponding to the CD sales on the day each CD was first released in stores. <BR>\n" );
document.write( "After how many weeks will the sales for the two CDs be equal?<BR>\n" );
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document.write( "Solve:<BR>\n" );
document.write( "25x+100 = -50x + 475<BR>\n" );
document.write( "75x = 375<BR>\n" );
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document.write( "x = 5 weeks<BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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