document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=960442>Question 960442</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need some help as I'm a bit stumped on how to set up the following problem. Thanks.\r<BR>\n" );
document.write( "\n" );
document.write( "Two cars leave towns 640 kilometers apart at the same time and travel toward each other. One car's rate is 18 kilometers per hour more than the others. If they meet in 4 hours, what is the rate of the faster car?\r<BR>\n" );
document.write( "\n" );
document.write( "Do not do any rounding. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #586967 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39625)</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=586967\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <i>Two cars leave towns d kilometers apart at the same time and travel toward each other. One car's rate is k kilometers per hour more than the others. If they meet in t hours, what is the rate of the faster car?</i>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "________________speeds________time_________distance<BR>\n" );
document.write( "FAST____________r+k____________t____________(____)<BR>\n" );
document.write( "SLOW_____________r_____________t____________(____)<BR>\n" );
document.write( "Total_______________________________________d\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "________________speeds________time_________distance<BR>\n" );
document.write( "FAST____________r+k____________t____________(r+k)t<BR>\n" );
document.write( "SLOW_____________r_____________t____________rt<BR>\n" );
document.write( "Total_______________________________________d\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28r%2Bk%29t%2Brt=d ALIGN=MIDDLE  ALT=\"%28r%2Bk%29t%2Brt=d\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=rt%2Bkt%2Brt=d ALIGN=MIDDLE  ALT=\"rt%2Bkt%2Brt=d\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2rt%2Bkt=d ALIGN=MIDDLE  ALT=\"2rt%2Bkt=d\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2rt=d-kt ALIGN=MIDDLE  ALT=\"2rt=d-kt\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r=%28d-kt%29%2F%282t%29%29 ALIGN=MIDDLE  ALT=\"highlight%28r=%28d-kt%29%2F%282t%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Question means, what is r+k ?\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r%2Bk=%28d-kt%29%2F%282t%29%2Bk%29 ALIGN=MIDDLE  ALT=\"highlight%28r%2Bk=%28d-kt%29%2F%282t%29%2Bk%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use the given values d=640, k=18, t=4;<BR>\n" );
document.write( "and evaluate the right member of this solution formula.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "r+k=89 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );