document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1166067>Question 1166067</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The total traveling time if the Smiths drove y km at 60 km/h and on the return trip improved their average speed to 80 0 km/h . What is it simplest form  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #790538 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=790538\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The total traveling time if the Smiths drove y km at 60 km/h and on the return trip improved their average speed to 80 0 km/h . What is it simplest form <BR>\n" );
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document.write( "average speed to 80 0 km/h ???<BR>\n" );
document.write( "If the return speed is 80 km/hr:<BR>\n" );
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document.write( "The average speed = 2*60*80/(60+80) = 480/7 km/hr (regardless of the distance)<BR>\n" );
document.write( "d = r*t<BR>\n" );
document.write( "y = (480/7)*t kms --- t in hours (if y is the round-trip distance)\r<BR>\n" );
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