document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1042873>Question 1042873</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You are trying to decide which of two cars to buy. The first is American-made, costs<BR>\n" );
document.write( "$14,500 and has a rated fuel consumption of 28 miles/gal. The second car is of<BR>\n" );
document.write( "European manufacture, costs $21,700 and has a rated fuel consumption of 19 km/L. If<BR>\n" );
document.write( "the cost of fuel is $0.85/gal and if the cars actually deliver their rated fuel consumption,<BR>\n" );
document.write( "estimate how many km you would have to drive for the lower fuel consumption of the<BR>\n" );
document.write( "second car to compensate for the higher cost of this car?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #657922 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=657922\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 45.05245.052Convert miles to km and gallons to liters<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+28%2A%28+1.609%2F1+%29+=+45.052+ ALIGN=MIDDLE  ALT=\"+28%2A%28+1.609%2F1+%29+=+45.052+\"   DISABLED_style= \"max-width:90%; height:auto;\" > km<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2A%28+3.785%2F1+%29+=+3.785+ ALIGN=MIDDLE  ALT=\"+1%2A%28+3.785%2F1+%29+=+3.785+\"   DISABLED_style= \"max-width:90%; height:auto;\" > L<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "Convert <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+28+ ALIGN=MIDDLE  ALT=\"+28+\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi/gal to km/L<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+45.052+%2F+3.785+=+11.903+ ALIGN=MIDDLE  ALT=\"+45.052+%2F+3.785+=+11.903+\"   DISABLED_style= \"max-width:90%; height:auto;\" > km/L<BR>\n" );
document.write( "and convert $/gal to $/L<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.85%2F3.785+=+.225+ ALIGN=MIDDLE  ALT=\"+.85%2F3.785+=+.225+\"   DISABLED_style= \"max-width:90%; height:auto;\" > $/L<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "Note that:<BR>\n" );
document.write( "( $/L ) / ( km/L ) = $/km, and then<BR>\n" );
document.write( "$/km * km = $<BR>\n" );
document.write( "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;\" > = number of km driven by both cars<BR>\n" );
document.write( "Set the costs of operation equal to each other<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+14500+%2B+%28+.225%2F11.903+%29%2Ax+=+21700+%2B+%28+.225%2F19+%29%2Ax+ ALIGN=MIDDLE  ALT=\"+14500+%2B+%28+.225%2F11.903+%29%2Ax+=+21700+%2B+%28+.225%2F19+%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=+14500+%2B+.0189x+=+21700+%2B+.012x+ ALIGN=MIDDLE  ALT=\"+14500+%2B+.0189x+=+21700+%2B+.012x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.0069x+=+7200+ ALIGN=MIDDLE  ALT=\"+.0069x+=+7200+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+1043478+ ALIGN=MIDDLE  ALT=\"+x+=+1043478+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So, the car costing $21,700 would have to be driven<BR>\n" );
document.write( "1,043,479 km to compensate for it's higher cost<BR>\n" );
document.write( "( I added 1 more km )<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=+14500+%2B+.0189x+%3E+21700+%2B+.012x+ ALIGN=MIDDLE  ALT=\"+14500+%2B+.0189x+%3E+21700+%2B+.012x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+14500+%2B+.0189%2A1043479+%3E+21700+%2B+.012%2A1043479+ ALIGN=MIDDLE  ALT=\"+14500+%2B+.0189%2A1043479+%3E+21700+%2B+.012%2A1043479+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.0189%2A1043479+-+.012%2A1043479+%3E+21700+-+14500+ ALIGN=MIDDLE  ALT=\"+.0189%2A1043479+-+.012%2A1043479+%3E+21700+-+14500+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.0069%2A1043479+%3E+7200+ ALIGN=MIDDLE  ALT=\"+.0069%2A1043479+%3E+7200+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=++7200.0051+%3E+7200+ ALIGN=MIDDLE  ALT=\"++7200.0051+%3E+7200+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "looks OK -check my math & maybe get another opinion </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );