document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=147346>Question 147346</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi I need help with this word problem.  I can not get what the 3rd equation should be.  Here is the problem: Adult tickets to a movie theater cost $7.25 for adults, $6.25 for senior citizens and $5.00 for children.  Over the weekend the theater sold 355 tickets and had a revenue of $2133.75.  It is known there were twice as many children's tickets sold as there were senior citizen tickets sold.  How many of each ticket were sold?<BR>\n" );
document.write( "This is as far as I could get.<BR>\n" );
document.write( "Adult   Senior citizens   Children<BR>\n" );
document.write( "x     +     Y          +  Z   = 355<BR>\n" );
document.write( "7.25x  +  6.25y        + 5.00Z = 2133.75<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #107721 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=107721\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The 3rd equation can be derived from the statement:<BR>\n" );
document.write( "\"It is known there were twice as many children's tickets sold as there were senior citizen tickets sold. \"<BR>\n" );
document.write( "z = 2y<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Substitute 2y for z and you have two equations with two unknowns<BR>\n" );
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