document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=275255>Question 275255</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Andrew and Joseph took a trip to Vintage Vinyl Record Store at the store Andrew bought 6 records and 3 CDs for a total of $85.23. Joseph bought 4 records and 3 CDs for a total of $67.81 \r<BR>\n" );
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document.write( "please help me write and solve a system of linear equations to find the cost of an individual record and an individual CD?\r<BR>\n" );
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document.write( "thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #200763 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=200763\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Andrew and Joseph took a trip to Vintage Vinyl Record Store at the store Andrew bought 6 records and 3 CDs for a total of $85.23. Joseph bought 4 records and 3 CDs for a total of $67.81 <BR>\n" );
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document.write( "6r + 3c = 85.23<BR>\n" );
document.write( "4r + 3c = 67.81<BR>\n" );
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document.write( "Subtract the 2nd equation from the 1st and solve for \"r\":<BR>\n" );
document.write( "2r = 17.42<BR>\n" );
document.write( "r = $8.71 (price of one record)<BR>\n" );
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document.write( "Substitute into one of the original equations and solve for \"c\":<BR>\n" );
document.write( "4(8.71) + 3c = 67.81<BR>\n" );
document.write( "c = $10.99 (price of one CD)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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