document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1039115>Question 1039115</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car's rate is 50 kph. A truck's rate is 40 kph. If the car starts later by 5 km in comparison's to the truck's, how many minutes before the car reaches the truck?\r<BR>\n" );
document.write( "\n" );
document.write( "Is it 30 minutes? But how did you arrive with this answer? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #653853 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=653853\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Start a stopwatch when the car leaves.<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the time on the stopwatch in<BR>\n" );
document.write( "hrs when the car catches up with the truck<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+ ALIGN=MIDDLE  ALT=\"+d+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the distance in km the car travels<BR>\n" );
document.write( "until it catches up with the truck<BR>\n" );
document.write( "---------------------------------------<BR>\n" );
document.write( "Equation for the car:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+50t+ ALIGN=MIDDLE  ALT=\"+d+=+50t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Equation for the truck:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+-+5+=+40t+ ALIGN=MIDDLE  ALT=\"+d+-+5+=+40t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Substitute (1) into (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+50t+-+5+=+40t+ ALIGN=MIDDLE  ALT=\"+50t+-+5+=+40t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10t+=+5+ ALIGN=MIDDLE  ALT=\"+10t+=+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+1%2F2+ ALIGN=MIDDLE  ALT=\"+t+=+1%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "The car catches up with the truck 1/2 after<BR>\n" );
document.write( "the CAR leaves.This is an important point.<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "If you wanted to know the time in hrs to catch the truck<BR>\n" );
document.write( "after the truck leaves, you must add in the truck's time<BR>\n" );
document.write( "to travel 5 km<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5+=+40t%5B1%5D+ ALIGN=MIDDLE  ALT=\"+5+=+40t%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+=+1%2F8+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+=+1%2F8+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+%2B+t%5B1%5D+=+4%2F8+%2B+1%2F8+=+5%2F8+ ALIGN=MIDDLE  ALT=\"+t+%2B+t%5B1%5D+=+4%2F8+%2B+1%2F8+=+5%2F8+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The car catches the truck 5/8 hr after the TRUCK leaves.<BR>\n" );
document.write( "This isn't what was wanted, so you don't care about it.<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );