document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=114672>Question 114672</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131411160/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with a word problem?\r<BR>\n" );
document.write( "\n" );
document.write( "A truck rental agency charges a daily fee plus a mileage fee.  Julie was charged $85 for two days and 100 miles and Christina was charged $165 for three days and 400 miles.  What is the agency's daily fee and what is the mileage fee? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #83437 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=83437\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A truck rental agency charges a daily fee plus a mileage fee. Julie was charged $85 for two days and 100 miles and Christina was charged $165 for three days and 400 miles. What is the agency's daily fee and what is the mileage fee?<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "Let daily fee = \"d\"<BR>\n" );
document.write( "Let milage fee = \"m\"<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "2d+100m = 85<BR>\n" );
document.write( "3d+400m = 165<BR>\n" );
document.write( "------------------------------<BR>\n" );
document.write( "Multiply thru the 1st equation by 4 to get:<BR>\n" );
document.write( "8d + 400m = 340<BR>\n" );
document.write( "3d + 400m = 165<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Subtract 2nd from 1st to get:<BR>\n" );
document.write( "5d = 175<BR>\n" );
document.write( "d = $35 (daily fee)<BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "Substitute into 2d+100m = 85 to solve for \"m\":<BR>\n" );
document.write( "70 + 100m = 85<BR>\n" );
document.write( "100m = 15<BR>\n" );
document.write( "m = 0.15 (milage fee)<BR>\n" );
document.write( "=====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );