document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1040893>Question 1040893</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ben was in charge of ordering 32 pizzas for the office party. He ordered three types of pizza: Cheese, pepperoni and supreme. The cheese pizza cost $7 each, the pepperoni pizza cost $10 each, and the supreme pizza cost $13 each. He spent exactly twice as much on the pepperoni pizzas as he did on the cheese pizzas. If Ben spent a total of $314 on pizza, how many pizzas did he order? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #655820 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=655820\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C%2BP%2BS=32 ALIGN=MIDDLE  ALT=\"C%2BP%2BS=32\"   DISABLED_style= \"max-width:90%; height:auto;\" > - Total number of pizzas<BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7C%2B10P%2B13S=314 ALIGN=MIDDLE  ALT=\"7C%2B10P%2B13S=314\"   DISABLED_style= \"max-width:90%; height:auto;\" > - Total cost of pizzas<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10P=2%287C%29 ALIGN=MIDDLE  ALT=\"10P=2%287C%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10P=14C ALIGN=MIDDLE  ALT=\"10P=14C\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "3.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5P=7C ALIGN=MIDDLE  ALT=\"5P=7C\"   DISABLED_style= \"max-width:90%; height:auto;\" > - Relationship between cheese and pepperoni<BR>\n" );
document.write( "From eq. 1,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5C%2B5P%2B5S=160 ALIGN=MIDDLE  ALT=\"5C%2B5P%2B5S=160\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substituting from 3,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5C%2B7C%2B5S=160 ALIGN=MIDDLE  ALT=\"5C%2B7C%2B5S=160\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "4.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12C%2B5S=160 ALIGN=MIDDLE  ALT=\"12C%2B5S=160\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "From eq. 2,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7C%2B14C%2B13S=314 ALIGN=MIDDLE  ALT=\"7C%2B14C%2B13S=314\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "5.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21C%2B13S=314 ALIGN=MIDDLE  ALT=\"21C%2B13S=314\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply eq. 4 by 7 and eq. 5 by 4 and subtract them to eliminate C.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=84C%2B35S-84C-52S=1120-1256 ALIGN=MIDDLE  ALT=\"84C%2B35S-84C-52S=1120-1256\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-17S=-136 ALIGN=MIDDLE  ALT=\"-17S=-136\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S=8 ALIGN=MIDDLE  ALT=\"S=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then from 4,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12C%2B5%288%29=160 ALIGN=MIDDLE  ALT=\"12C%2B5%288%29=160\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12C=120 ALIGN=MIDDLE  ALT=\"12C=120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=10 ALIGN=MIDDLE  ALT=\"C=10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and from 3,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5P=7%2810%29 ALIGN=MIDDLE  ALT=\"5P=7%2810%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=14 ALIGN=MIDDLE  ALT=\"P=14\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );