document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=554530>Question 554530</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car travels  up a hill at a constant speed of 30mi/hr and returns down the hill at a speed of 60 mi/hr. the road to the top of the hill is 15 miles.  Calculate the total time for th whole trip. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #361371 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=361371\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A car travels  up a hill at a constant speed of 30mi/hr and returns down the hill at a speed of 60 mi/hr. the road to the top of the hill is 15 miles.  Calculate the total time for th whole trip.<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "t = d/r<BR>\n" );
document.write( "15/30 = 0.5 hr going up<BR>\n" );
document.write( "15/60 = 0.25 hr coming down<BR>\n" );
document.write( "--> 0.75 hours<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Notice that the average speed for the round trip is 40 mi/hr, not 45.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );