document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1183781>Question 1183781</A>: <I><SPAN STYLE=\"word-break: break-all;\"> during the movie fundraising event the concession stand at the auditorium sells popcorn, fruit,drinks. the price of a box of popcorn is 0.50 more than the price of a piece of fruit, and the price of two drinks is 0.50 less than the price of three pieces of fruit. you order two boxes of popcorn one piece of fruit and three drinks and the total comes to 7.75\r<BR>\n" );
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document.write( "a. write a system of linear equations in three variables to represent the solution . be sure to define your variables.\r<BR>\n" );
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document.write( "b. calculate the price of each item. use substitution to solve the system of three linear equations in three variables. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #814289 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=814289\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a.    \r<BR>\n" );
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document.write( "Let p = unit price of popcorn box<BR>\n" );
document.write( "f = unit price of fruit<BR>\n" );
document.write( "d = unit price of drink\r<BR>\n" );
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document.write( "===><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28p+=+f+%2B+0.50%2C+2d+=+3f+-+0.50%2C+2p+%2B+f+%2B+3d+=+7.75%29 ALIGN=MIDDLE  ALT=\"system%28p+=+f+%2B+0.50%2C+2d+=+3f+-+0.50%2C+2p+%2B+f+%2B+3d+=+7.75%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "b.  Express everything in terms of p;\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f+=+p+-+0.50 ALIGN=MIDDLE  ALT=\"f+=+p+-+0.50\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "===> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2d+=+3f+-+0.50++=+3%28p+-+0.50%29+-+0.50+=+3p+-+2 ALIGN=MIDDLE  ALT=\"2d+=+3f+-+0.50++=+3%28p+-+0.50%29+-+0.50+=+3p+-+2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+1.5p+-+1 ALIGN=MIDDLE  ALT=\"d+=+1.5p+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "===><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2p+%2B+f+%2B+3d+=+2p+%2B+%28p-0.50%29+%2B3%281.5p+-+1%29+=+7.75 ALIGN=MIDDLE  ALT=\"2p+%2B+f+%2B+3d+=+2p+%2B+%28p-0.50%29+%2B3%281.5p+-+1%29+=+7.75\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "===> 7.50p - 3.50 = 7.75 ===> 7.50p = 11.25 ===> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28p+=+1.50%29 ALIGN=MIDDLE  ALT=\"highlight%28p+=+1.50%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "===> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28f=1.00%29 ALIGN=MIDDLE  ALT=\"highlight%28f=1.00%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28d+=+1.25%29 ALIGN=MIDDLE  ALT=\"highlight%28d+=+1.25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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