document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=881295>Question 881295</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is your average rate if you drive to campus averaging 50 mph and return home on the same route averaging 40 mpg </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #532136 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=532136\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is your average rate if you drive to campus averaging 50 mph and return home on the same route averaging 40 mpg<BR>\n" );
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document.write( "It's not 45, the avg of 50 & 40 because more time is spent going 40.<BR>\n" );
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document.write( "There's a formula similar to parallel resistance and parallel flows \r<BR>\n" );
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document.write( "Avg = 2*50*40/(50 + 40) = 4000/90 = 400/9<BR>\n" );
document.write( "= 44.444... mi/hr (not mpg)<BR>\n" );
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document.write( "I can derive the formula if you like. </SPAN>\n" );
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