document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167204>Question 167204</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A movie theater charges $8.00 for adults and $5.00 for children. If there were 40 people alltogether and the theater collected $272.00 at the end of the day, how many of them were adults? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123138 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=123138\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> lets call the number of adults a and the number of  children c.\r<BR>\n" );
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document.write( "so the total adults plus the total children equals 40 or a+c=40 or c=40-a\r<BR>\n" );
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document.write( "also we know that 8a+5c=272\r<BR>\n" );
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document.write( "substituting c's value in the 1st equation into the 2nd equation we get\r<BR>\n" );
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document.write( "8a+5(40-a)=272---->lets distribute that left side---->8a+200-5a=272\r<BR>\n" );
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document.write( "now lets combine like terms on either side of the equals sign.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3a=72 ALIGN=MIDDLE  ALT=\"3a=72\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=24 ALIGN=MIDDLE  ALT=\"a=24\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so we have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2824-adults%29 ALIGN=MIDDLE  ALT=\"highlight%2824-adults%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and c=40-a(24)=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2816-children%29 ALIGN=MIDDLE  ALT=\"highlight%2816-children%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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