document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1007837>Question 1007837</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A group bought 20 tickets to an amusement park for a total cost of $540. Student tickets cost $25 each and adult tickets cost $30 each. How many student tickets were purchased? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #623672 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=623672\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Call the number of student and adult tickets, s and a.  Then we have<BR>\n" );
document.write( "s + a = 20   and the value equation is<BR>\n" );
document.write( "25s + 30a = 540<BR>\n" );
document.write( "Now mutiply the top equation by 25 and subtract from the second equation...we get<BR>\n" );
document.write( "25s + 30a = 540<BR>\n" );
document.write( "-(25s + 25a = 500)<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "5a = 40<BR>\n" );
document.write( "a = 8 adult tickets<BR>\n" );
document.write( "s = 12 student tickets </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );