document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=164015>Question 164015</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a rental car agency charges $16 per day plus 10 cents per mile to rent a certain car. Another agency charges $18 per day plus 5 cents per mile to rent the same car. How many miles will have to be driven for the cost of a car from the firts agency to equal the cost of a car of the second agency? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #120882 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=120882\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let m = total miles driven<BR>\n" );
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document.write( "Cost formula of rental car agency 1:<BR>\n" );
document.write( "C(m) = 16 + .10m<BR>\n" );
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document.write( "Cost formula of rental car agency 2:<BR>\n" );
document.write( "C(m) = 18 + .05m<BR>\n" );
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document.write( "Set them equal to each other and solve for m:<BR>\n" );
document.write( "16 + .10m = 18 + .05m<BR>\n" );
document.write( ".10m = 2 + .05m<BR>\n" );
document.write( ".05m = 2<BR>\n" );
document.write( "m = 2/.05<BR>\n" );
document.write( "m = 40 miles <BR>\n" );
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