document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1019145>Question 1019145</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At a local music store, single recording tapes cost $6.99 and concert tapes cost $10.99. At the end of the day a total of 25 tapes were sold. if the sales for the day total $230.75 for single recording  tapes and concert tapes, find the number of each type of tape sold. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #635188 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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/cgi-bin/show-face.mpl?user=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=635188\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "Make single recording tapes = 'x'<BR>\n" );
document.write( "Concert tapes = 'y'<BR>\n" );
document.write( "x + y = 25 ........(1)<BR>\n" );
document.write( "699x + 1099y = 23075.....(2)<BR>\n" );
document.write( "Multiply (1) by 699<BR>\n" );
document.write( "699x + 699y = 17475.....(1)<BR>\n" );
document.write( "699x + 1099y = 23075....(2)<BR>\n" );
document.write( "Subtract (1) from (2)<BR>\n" );
document.write( "......400y = 5600<BR>\n" );
document.write( ".........y = 14<BR>\n" );
document.write( "Substitute y = 14 into (1)<BR>\n" );
document.write( "x + y = 25 .......(1)<BR>\n" );
document.write( "x + 14 = 25<BR>\n" );
document.write( "x = 25 - 14<BR>\n" );
document.write( "x = 11<BR>\n" );
document.write( "11 x single recording tapes<BR>\n" );
document.write( "14 x concert tapes<BR>\n" );
document.write( "Hope this helps :-)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );