document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=220864>Question 220864</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ok this one is stumping me. \r<BR>\n" );
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document.write( " An outdoor amphitheatre has 25,000 seats. Ticket prices are $15, $17, and $25. The number of tickets priced at $17 must equal two times the number priced at $25. How many tickets should be sold ( assuming all seats can be sold) to bring in $434,500? . Set up a system of equations an dsolve using th inverse matrix method. \r<BR>\n" );
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document.write( "  I was setting up like this:\r<BR>\n" );
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document.write( "  X+Y+Z = 25,000<BR>\n" );
document.write( " 15x + 17y + 25z = 43500\r<BR>\n" );
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document.write( "But I cannot get a third set to be able to use the inverse function on my TI84<BR>\n" );
document.write( "without it I get the \"INVALID DIM\" error\r<BR>\n" );
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document.write( " HELP!!!!!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #165695 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=165695\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An outdoor amphitheatre has 25,000 seats. Ticket prices are $15, $17, and $25. The number of tickets priced at $17 must equal two times the number priced at $25. How many tickets should be sold ( assuming all seats can be sold) to bring in $434,500? . Set up a system of equations an dsolve using th inverse matrix method. <BR>\n" );
document.write( "I was setting up like this: <BR>\n" );
document.write( "X+Y+Z = 25,000<BR>\n" );
document.write( "15x + 17y + 25z = 43500 <BR>\n" );
document.write( "The number of tickets priced at $17 must equal two times the number priced at $25.<BR>\n" );
document.write( "y = 2z<BR>\n" );
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document.write( "That's the 3rd equation.<BR>\n" );
document.write( "Email me via the thank you note for help, or to check you work if you like. </SPAN>\n" );
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