document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=891760>Question 891760</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the cost to drive from Atlanta to Orlando, a distance of 475 miles, if the cost of gasoline is $3.59 a gallon and the minivan gets 25 miles per gallon? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #540011 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=540011\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Proportion problem.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=475%2Fg=25%2F1 ALIGN=MIDDLE  ALT=\"475%2Fg=25%2F1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, unit being MILE per GALLON,  letting g = how many gallons for this trip.\r<BR>\n" );
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document.write( "Now, g is known.\r<BR>\n" );
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document.write( "Let c = cost;<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.59%2F1=c%2Fg ALIGN=MIDDLE  ALT=\"3.59%2F1=c%2Fg\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and the unit is DOLLARS per GALLON.<BR>\n" );
document.write( "Solve for c.\r<BR>\n" );
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document.write( "This can be done also using a chain of ratios as factors.  This is usually what you want to do when you have more than just a simple proportion.\r<BR>\n" );
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document.write( "Start with the given distance.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28475%2Amiles%2A%281%2F25%29%28gallon%2Fmile%293.59%28dollars%2Fgallon%29%29 ALIGN=MIDDLE  ALT=\"highlight%28475%2Amiles%2A%281%2F25%29%28gallon%2Fmile%293.59%28dollars%2Fgallon%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Look how the ratios are arranged and how the units cancel to leave just dollars. </SPAN>\n" );
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