document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=791394>Question 791394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A bus travels 87.5 km to another town at a speed of 72.0 km/h. What must be its return rate if the total time for the trip to be 2.50 hours? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #479558 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=479558\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> d = rt\r<BR>\n" );
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document.write( "d = 72t\r<BR>\n" );
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document.write( "87.5 = 72t\r<BR>\n" );
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document.write( "87.5/72 = t\r<BR>\n" );
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document.write( "t = 87.5/72\r<BR>\n" );
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document.write( "t = 1.2152777\r<BR>\n" );
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document.write( "So you have spent 1.2152777 hours roughly traveling 87.5 km.\r<BR>\n" );
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document.write( "There are 2.5 - 1.2152777 = 1.2847223 hours left and you must travel 87.5 km back to the original starting location\r<BR>\n" );
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document.write( "d = rt\r<BR>\n" );
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document.write( "87.5 = r*1.2847223\r<BR>\n" );
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document.write( "87.5/1.2847223 = r\r<BR>\n" );
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document.write( "r = 68.1081039\r<BR>\n" );
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document.write( "So the return speed must be roughly <font color=\"red\">68.1081039 km/hr</font>\r<BR>\n" );
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