document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=234485>Question 234485</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The price of admission for a ticket was $10 for adults and $3 for children. 520 tickets were sold, the resulting revenue was $3450. How many adults and how many children attended the concert? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172919 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=172919\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a+c=520 or a=520-c<BR>\n" );
document.write( "10a+3c=3450<BR>\n" );
document.write( "10(520-c)+3c=3450<BR>\n" );
document.write( "5200-10c+3c=3450<BR>\n" );
document.write( "-7c=3450-5200<BR>\n" );
document.write( "-7c=-1750<BR>\n" );
document.write( "c=1750/7<BR>\n" );
document.write( "c=250 number of children tickets sold.<BR>\n" );
document.write( "a+250=520<BR>\n" );
document.write( "a=520-250<BR>\n" );
document.write( "a=270 adult tickets sold.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "10*270+3*250=3450<BR>\n" );
document.write( "2700+750=3450<BR>\n" );
document.write( "3450=3450<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );