document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=45006>Question 45006</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Adult tickets for a play cost $4 and child tickets cost $1.  If there were 23 people at a performance and the theater collected $80 from ticket sales, how many children attended the play?\r<BR>\n" );
document.write( "\n" );
document.write( "A. 19 children\r<BR>\n" );
document.write( "\n" );
document.write( "b. 5 children\r<BR>\n" );
document.write( "\n" );
document.write( "c. 3 children\r<BR>\n" );
document.write( "\n" );
document.write( "d. 4 children </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #29826 by </B><A HREF=/tutors/aboutme.mpl?userid=adamchapman><B>adamchapman(301)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=adamchapman><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=29826\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a = number of adults<BR>\n" );
document.write( "c = number of children<BR>\n" );
document.write( "23 people in total:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Bc=23 ALIGN=MIDDLE  ALT=\"a%2Bc=23\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............(1)<BR>\n" );
document.write( "cost = $80:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Aa%2B1%2Ac=80 ALIGN=MIDDLE  ALT=\"4%2Aa%2B1%2Ac=80\"   DISABLED_style= \"max-width:90%; height:auto;\" >...........(2)<BR>\n" );
document.write( "Rearrange (1) to give a in terms of c:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=23-c ALIGN=MIDDLE  ALT=\"a=23-c\"   DISABLED_style= \"max-width:90%; height:auto;\" >...........(3)<BR>\n" );
document.write( "Substitute (3) into (2) for c:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2823-c%29%2Bc=80 ALIGN=MIDDLE  ALT=\"4%2823-c%29%2Bc=80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=92-3c=80 ALIGN=MIDDLE  ALT=\"92-3c=80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3c=12 ALIGN=MIDDLE  ALT=\"3c=12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c=4 ALIGN=MIDDLE  ALT=\"c=4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So 4 children attend the play.<BR>\n" );
document.write( "I hope this helps.<BR>\n" );
document.write( "P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk<BR>\n" );
document.write( "Adam\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );