document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=600257>Question 600257</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jeremy is making a 665 mile trip. He drives for 5 hours at 55 mph. What is the average rate of speed he must drive to complete the total trip in 11 hours? Assume that a steady speed is maintained for the rest of the trip. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #379266 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=379266\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> He drove 5 hours at 55 mph. So he drove d = rt = 55*5 = 275 miles so far.\r<BR>\n" );
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document.write( "He now has 665 - 275 = 390 miles left to go\r<BR>\n" );
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document.write( "So d = 390. \r<BR>\n" );
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document.write( "Since he wants to complete the trip in 11 hours, and he's already taken up 5 hours, he has 11 - 5 = 6 hours left. \r<BR>\n" );
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document.write( "So t = 6\r<BR>\n" );
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document.write( "Now use d = rt to solve for r\r<BR>\n" );
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document.write( "d = rt\r<BR>\n" );
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document.write( "390 = r*6\r<BR>\n" );
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document.write( "390/6 = r\r<BR>\n" );
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document.write( "65 = r\r<BR>\n" );
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document.write( "r = 65\r<BR>\n" );
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document.write( "So he must average 65 mph </SPAN>\n" );
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