document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1113592>Question 1113592</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A family bought 4 sodas at a movie theatre for a total of $9.30. they bought one small, one medium  and one large and one jumbo size. the jumbo cause twice as much as the medium, the medium costs 70 cents more than the small and the large costs twice as much as the small. what are the price of each soda? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #728644 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=728644\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> prices:<BR>\n" );
document.write( "w, x, y, z<BR>\n" );
document.write( "small medium large jumbo\r<BR>\n" );
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document.write( "4 sodas at a movie theatre for a total of $9.30. they bought one small, one medium and one large and one jumbo size.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%2Bx%2By%2Bz=9.3 ALIGN=MIDDLE  ALT=\"w%2Bx%2By%2Bz=9.3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "the jumbo COSTS twice as much as the medium, the medium costs 70 cents more than the small and the large costs twice as much as the small. <BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28z=2x%2Cx=w%2B0.7%2Cy=2w%29 ALIGN=MIDDLE  ALT=\"system%28z=2x%2Cx=w%2B0.7%2Cy=2w%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Find price of each.<BR>\n" );
document.write( "system could start as<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28w%2Bx%2By%2Bz=9.3%2Cz=2x%2Cx=w%2B0.7%2Cy=2w%29 ALIGN=MIDDLE  ALT=\"system%28w%2Bx%2By%2Bz=9.3%2Cz=2x%2Cx=w%2B0.7%2Cy=2w%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "substituting for y and z,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%2Bx%2B2w%2B2x=9.3 ALIGN=MIDDLE  ALT=\"w%2Bx%2B2w%2B2x=9.3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3w%2B3x=9.3 ALIGN=MIDDLE  ALT=\"3w%2B3x=9.3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%2Bx=3.1 ALIGN=MIDDLE  ALT=\"w%2Bx=3.1\"   DISABLED_style= \"max-width:90%; height:auto;\" >----------equation in two variables, w and x.\r<BR>\n" );
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document.write( "Revise to the simpler system,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28w%2Bx=3.1%2Cx=w%2B0.7%29 ALIGN=MIDDLE  ALT=\"system%28w%2Bx=3.1%2Cx=w%2B0.7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Use simple substituion:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%2Bw%2B0.7=3.1 ALIGN=MIDDLE  ALT=\"w%2Bw%2B0.7=3.1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2w=3.1-0.7 ALIGN=MIDDLE  ALT=\"2w=3.1-0.7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28w=1.2%29 ALIGN=MIDDLE  ALT=\"highlight%28w=1.2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Use this value for w to find all the other price values. </SPAN>\n" );
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