document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=112547>Question 112547</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The gas guage on the van initially read 1/8 full.  When 15 gallons were added to the tank the guage read 3/4 full.   How many more gallons are needed to fill the tank?  I know the answer is 6 but I can't get an equation to prove it. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82074 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=82074\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = number of gallons in the tank when full.\r<BR>\n" );
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document.write( "You begin with 1/8 of the full tank, you add 15 gallons, and what you have is 3/4 of a full tank.  So where x represents the \"full tank\", the equation is\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F8%29%2Ax+%2B+15=+%283%2F4%29%2Ax+ ALIGN=MIDDLE  ALT=\"%281%2F8%29%2Ax+%2B+15=+%283%2F4%29%2Ax+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Multiply both sides of the equation by the LCD, which is 8:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2A%281%2F8%29%2Ax+%2B+8%2A15=+8%2A%283%2F4%29%2Ax+ ALIGN=MIDDLE  ALT=\"8%2A%281%2F8%29%2Ax+%2B+8%2A15=+8%2A%283%2F4%29%2Ax+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%2B+120=+6x+ ALIGN=MIDDLE  ALT=\"x+%2B+120=+6x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=120=5x ALIGN=MIDDLE  ALT=\"120=5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=120%2F5=+24 ALIGN=MIDDLE  ALT=\"x=120%2F5=+24\"   DISABLED_style= \"max-width:90%; height:auto;\" > gallons\r<BR>\n" );
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document.write( "Since you ended up with 3/4 of a tank, you have 3/4 of 24 which is 18 gallons in the car.  It will take 6 gallons to fill it the rest of the way.\r<BR>\n" );
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document.write( "Pretty neat problem!!\r<BR>\n" );
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document.write( "R^2 </SPAN>\n" );
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