document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=186343>Question 186343</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me quickly, I am trying to help my daughter with her homework.\r<BR>\n" );
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document.write( "Problem:\r<BR>\n" );
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document.write( "At a concert, main floor seats sell for $25.00 and Upper Level seats sell for $12.00.  There were 50,000 people in attendance and the concert total ticket sales is $1,112,000.  How many main floor seats and upper level seats were sold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #139675 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=139675\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m ALIGN=MIDDLE  ALT=\"m\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of main floor tickets sold<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u ALIGN=MIDDLE  ALT=\"u\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of upper level tickets sold<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m+%2B+u+=+50000 ALIGN=MIDDLE  ALT=\"m+%2B+u+=+50000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25m+%2B+12u+=+1112000 ALIGN=MIDDLE  ALT=\"25m+%2B+12u+=+1112000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "There are 2 equations and 2 unknowns. When the <BR>\n" );
document.write( "number of equations matches the number of unknowns,<BR>\n" );
document.write( "it is solvable.<BR>\n" );
document.write( "Multiply both sides of (1) by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12 ALIGN=MIDDLE  ALT=\"12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and subtract from (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25m+%2B+12u+=+1112000 ALIGN=MIDDLE  ALT=\"25m+%2B+12u+=+1112000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-12m+-+12u+=+-600000 ALIGN=MIDDLE  ALT=\"-12m+-+12u+=+-600000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13m+=+512000 ALIGN=MIDDLE  ALT=\"13m+=+512000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m+=+39385 ALIGN=MIDDLE  ALT=\"m+=+39385\"   DISABLED_style= \"max-width:90%; height:auto;\" > (rounded off)<BR>\n" );
document.write( "and<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m+%2B+u+=+50000 ALIGN=MIDDLE  ALT=\"m+%2B+u+=+50000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=39385+%2B+u+=+50000 ALIGN=MIDDLE  ALT=\"39385+%2B+u+=+50000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u+=+10615 ALIGN=MIDDLE  ALT=\"u+=+10615\"   DISABLED_style= \"max-width:90%; height:auto;\" > (rounded off)<BR>\n" );
document.write( "39,385 mainfloor seats were sold and 10615 upper level <BR>\n" );
document.write( "seats were sold<BR>\n" );
document.write( "check answer:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25m+%2B+12u+=+1112000 ALIGN=MIDDLE  ALT=\"25m+%2B+12u+=+1112000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25%2A39385+%2B+12%2A10615+=+1112000 ALIGN=MIDDLE  ALT=\"25%2A39385+%2B+12%2A10615+=+1112000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=984625+%2B+127380+=+1112000 ALIGN=MIDDLE  ALT=\"984625+%2B+127380+=+1112000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1112005+=+1112000 ALIGN=MIDDLE  ALT=\"1112005+=+1112000\"   DISABLED_style= \"max-width:90%; height:auto;\" > (close enough)<BR>\n" );
document.write( "and<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m+%2B+u+=+50000 ALIGN=MIDDLE  ALT=\"m+%2B+u+=+50000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=39385+%2B+10615+=+50000 ALIGN=MIDDLE  ALT=\"39385+%2B+10615+=+50000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50000+=+50000 ALIGN=MIDDLE  ALT=\"50000+=+50000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
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