document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=732447>Question 732447</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A private plain traveled from Seattle to the rugged wilderness, at an average speed of 156 mph.on the return trip the average speed was 182 mph if the total traveling time was 9 hours, how far was Seattle from the wilderness? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #447879 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=447879\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A private plain traveled from Seattle to the rugged wilderness, at an average speed of 156 mph.on the return trip the average speed was 182 mph if the total traveling time was 9 hours, how far was Seattle from the wilderness?<BR>\n" );
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document.write( "Avg speed for the round trip = 2*156*182/(156+182)<BR>\n" );
document.write( "= 168 mi/hr<BR>\n" );
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document.write( "RT distance = 168*9 = 1512 miles<BR>\n" );
document.write( "One way = 756 miles<BR>\n" );
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document.write( "Notice the formula for avg speed is similar to parallel resistors and parallel flows in pipes, with a factor of 2 in the numerator.<BR>\n" );
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document.write( "The distance is not a factor. </SPAN>\n" );
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