document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=57830>Question 57830</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 13.	Adult tickets for a play cost $16 and child tickets cost $12.  If there were 33 people at a performance and the theater collected $472 from ticket sales, how many children attended the play?<BR>\n" );
document.write( "A)	13 children<BR>\n" );
document.write( "B)	14 children<BR>\n" );
document.write( "C)	15 children<BR>\n" );
document.write( "D)	19 children<BR>\n" );
document.write( "Thanks so much for all you do!!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #39515 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=39515\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 13.	Adult tickets for a play cost $16 and child tickets cost $12.  If there were 33 people at a performance and the theater collected $472 from ticket sales, how many children attended the play?<BR>\n" );
document.write( "A)	13 children<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28B%29 ALIGN=MIDDLE  ALT=\"highlight%28B%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >	14 children<BR>\n" );
document.write( "C)	15 children<BR>\n" );
document.write( "D)	19 children<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let children=x<BR>\n" );
document.write( "Then since the rest of the people who attended were adults then adults=33-x<BR>\n" );
document.write( "The money made from children's tickets would be: $12x<BR>\n" );
document.write( "The money made from adult tickets is: $16(33-x)<BR>\n" );
document.write( "The total money made is: $472<BR>\n" );
document.write( ":<BR>\n" );
document.write( "The equation to solve is:<BR>\n" );
document.write( "12x+16(33-x)=472<BR>\n" );
document.write( "12x+528-16x=472<BR>\n" );
document.write( "-4x+528=472<BR>\n" );
document.write( "-4x+528-528=472-528<BR>\n" );
document.write( "-4x=-56<BR>\n" );
document.write( "-4x/-4=-56/-4<BR>\n" );
document.write( "x=14<BR>\n" );
document.write( ":<BR>\n" );
document.write( "If you are on systems of equations with two equations and two unknowns, then:<BR>\n" );
document.write( "let children be:x<BR>\n" );
document.write( "let adults be: y<BR>\n" );
document.write( "Then your system is:<BR>\n" );
document.write( "x+y=33<BR>\n" );
document.write( "12x+16y=472<BR>\n" );
document.write( "If you solve the first equation for y and substitute it in the second equation you get what I showed you using one equation and one unknown.<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );