document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=225216>Question 225216</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Advance tickets to a show cost 20 ,and same-day tickets cost 30. The total number of tickets sold was 60 for total receipts of 1600. How many tickets of each type were sold.\r<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 #168102 by </B><A HREF=/tutors/aboutme.mpl?userid=LtAurora><B>LtAurora(115)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=LtAurora><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=LtAurora><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=168102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> From the given information we can say:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2BS=60 ALIGN=MIDDLE  ALT=\"A%2BS=60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20A%2B30S=1600 ALIGN=MIDDLE  ALT=\"20A%2B30S=1600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Where A is the advance ticket and S is the same-day ticket.<BR>\n" );
document.write( "Solve the first equation for one of the variables:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=60-S ALIGN=MIDDLE  ALT=\"A=60-S\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then plug this into the second equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2860-S%29%2B30S=1600 ALIGN=MIDDLE  ALT=\"20%2860-S%29%2B30S=1600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Distribute the 20:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200-20S%2B30S=1600 ALIGN=MIDDLE  ALT=\"1200-20S%2B30S=1600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Move the 1200 to the other side and combine the S terms:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10S=400 ALIGN=MIDDLE  ALT=\"10S=400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Divide both sides by 10:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S=40 ALIGN=MIDDLE  ALT=\"S=40\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Plug this back into our first equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=60-40=20 ALIGN=MIDDLE  ALT=\"A=60-40=20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So, 40 same-day tickets were sold and 20 advance tickets. </SPAN>\n" );
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