document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=169384>Question 169384</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car rental company has two rental rates.  Rate 1 is $72 per day plus $0.16 per mile.  Rate 2 is $144 per day plus $0.08 per mile.  If you plan to rent for one week, how many miles would you need to drive to pay less by taking Rate 2? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124874 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=124874\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> so we have 72d+.16m for rate 1 and 144d+.08m for rate 2. where d is days and m is mileage.  set is to rate 2<rate 1  to find when rate 2 is less than rate 1<BR>\n" );
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document.write( "144(7)+.08m < 72(7)+.16m  <BR>\n" );
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document.write( "1008+.08m < 504+.16m<BR>\n" );
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document.write( "-.08m < -504.......we need to divide by -.08 remembering that when you divide by a negative that the inequality reverses.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28m%3E6300%29 ALIGN=MIDDLE  ALT=\"highlight%28m%3E6300%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >miles<BR>\n" );
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