document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1179677>Question 1179677</A>: <I><SPAN STYLE=\"word-break: break-all;\"> During one month, a homeowner used 300 units of electricity and 140 units of gas for a total cost of $106.20. The next month, 250 units of electricity and 250 units of gas were used for a total cost of $112.50. Find the cost per unit of gas. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #809248 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</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=809248\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28300e%2B140g=106.2%2C250e%2B250g=112.5%29 ALIGN=MIDDLE  ALT=\"system%28300e%2B140g=106.2%2C250e%2B250g=112.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Question asks for g.  Might be neat if try to eliminate terms of e.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286%2F5%29%28250e%2B250g%29=%286%2F5%29%2A112.5 ALIGN=MIDDLE  ALT=\"%286%2F5%29%28250e%2B250g%29=%286%2F5%29%2A112.5\"   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=300e%2B300g=135 ALIGN=MIDDLE  ALT=\"300e%2B300g=135\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "revised system:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28300e%2B140g=106.2%2C300e%2B300g=135%29 ALIGN=MIDDLE  ALT=\"system%28300e%2B140g=106.2%2C300e%2B300g=135%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Subtract.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60g=28.8 ALIGN=MIDDLE  ALT=\"60g=28.8\"   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%28g=0.48%29 ALIGN=MIDDLE  ALT=\"highlight%28g=0.48%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >----dollars per unit </SPAN>\n" );
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