document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=902767>Question 902767</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A truck driver traveled at an average speed of 60 miles per hour on a 200-mile trip to pick up a load of freight. On the return trip (with the truck fully loaded), the average speed was 39 miles per hour. Find the average speed for the round trip. (Round your answer to one decimal place.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #702069 by </B><A HREF=/tutors/aboutme.mpl?userid=adamhen894><B>adamhen894(15)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=adamhen894><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=702069\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x be speed (mph) for round trip<BR>\n" );
document.write( "for the outbound<BR>\n" );
document.write( "d= 200mile<BR>\n" );
document.write( "r= 60mph<BR>\n" );
document.write( "t= 200/60h\r<BR>\n" );
document.write( "\n" );
document.write( "for the return trip<BR>\n" );
document.write( "d= 200mile<BR>\n" );
document.write( "r= 39mph<BR>\n" );
document.write( "t= 200/39h\r<BR>\n" );
document.write( "\n" );
document.write( "total distance is 400 mile<BR>\n" );
document.write( "total time is (200/60)+(200/39) h\r<BR>\n" );
document.write( "\n" );
document.write( "400=x((200/60)+(200/39))<BR>\n" );
document.write( "solve the equation, you will find the unknown. <BR>\n" );
document.write( "which is approximately 47.273h </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );