document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1082652>Question 1082652</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Starting with a full tank of gas, if you use 9 gallons of gasoline, your car can go another 315 miles before running out of fuel. After using 14 gallons, your car can go another 240 miles.\r<BR>\n" );
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document.write( "What is your average fuel efficiency? miles per gallon   \r<BR>\n" );
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document.write( "How many miles could you drive in this car on a full tank of gas? miles   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #696717 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=696717\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+ ALIGN=MIDDLE  ALT=\"+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the number of gallons in a full tank<BR>\n" );
document.write( "The fuel efficiency is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+315+%2F+%28+x-9+%29+ ALIGN=MIDDLE  ALT=\"+315+%2F+%28+x-9+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and, also:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+240+%2F+%28+x+-+14+%29+ ALIGN=MIDDLE  ALT=\"+240+%2F+%28+x+-+14+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "The fuel efficiency doesn't change, so:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+315+%2F+%28+x+-+9+%29+=+240+%2F+%28+x+-+14+%29+ ALIGN=MIDDLE  ALT=\"+315+%2F+%28+x+-+9+%29+=+240+%2F+%28+x+-+14+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+x+-+9+%29%2A%28+x+-+14+%29+ ALIGN=MIDDLE  ALT=\"+%28+x+-+9+%29%2A%28+x+-+14+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+315%2A%28+x+-+14+%29+=+240%2A%28+x+-+9+%29+ ALIGN=MIDDLE  ALT=\"+315%2A%28+x+-+14+%29+=+240%2A%28+x+-+9+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+21%2A%28+x+-+14+%29+=+16%2A%28+x+-+9+%29+ ALIGN=MIDDLE  ALT=\"+21%2A%28+x+-+14+%29+=+16%2A%28+x+-+9+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+21x+-+294+=+16x+-+144+ ALIGN=MIDDLE  ALT=\"+21x+-+294+=+16x+-+144+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5x+=+150+ ALIGN=MIDDLE  ALT=\"+5x+=+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+30+ ALIGN=MIDDLE  ALT=\"+x+=+30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "The fuel efficiency is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+315+%2F+%28+x+-+9+%29+ ALIGN=MIDDLE  ALT=\"+315+%2F+%28+x+-+9+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+315+%2F+%28+30+-+9+%29+ ALIGN=MIDDLE  ALT=\"+315+%2F+%28+30+-+9+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+315+%2F+21+=+15+ ALIGN=MIDDLE  ALT=\"+315+%2F+21+=+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "15 miles/gallon<BR>\n" );
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document.write( "The miles you could drive on a full tank:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15x+=+15%2A30+ ALIGN=MIDDLE  ALT=\"+15x+=+15%2A30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15x+=+450+ ALIGN=MIDDLE  ALT=\"+15x+=+450+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "450 miles<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+240+%2F+%28+x+-+14+%29+ ALIGN=MIDDLE  ALT=\"+240+%2F+%28+x+-+14+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+240+%2F+%28+30+-+14+%29+ ALIGN=MIDDLE  ALT=\"+240+%2F+%28+30+-+14+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+240+%2F+16+=+15+ ALIGN=MIDDLE  ALT=\"+240+%2F+16+=+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "15 miles/gallon<BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );