document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=724017>Question 724017</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help: A trucker maintained a constant speed and traveled 480 miles. On his way back he reduced his speed by 20 mph which increased the trip back by 4 hours. What was his speed on the way back? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #443533 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=443533\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r*t=d\r<BR>\n" );
document.write( "\n" );
document.write( "r*t=480<BR>\n" );
document.write( "(r-20)*(t+4)=480<BR>\n" );
document.write( "r = 60,   t = 8<BR>\n" );
document.write( "r-20=40 mph on trip back </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );