document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=887023>Question 887023</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me! \r<BR>\n" );
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document.write( "Starting at home, Jessica travelled uphill to the hardware store for 75 minutes at just 4 mph. She then travelled back home along the same path downhill at a speed of 12 mph.\r<BR>\n" );
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document.write( "What is her average speed for the entire trip from home to the hardware store and back?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #536331 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=536331\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jessica travelled uphill to the hardware store at just 4 mph. She then travelled back home along the same path downhill at a speed of 12 mph.<BR>\n" );
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document.write( "The distance does not matter.<BR>\n" );
document.write( "Avg speed for a round trip is similar to parallel resistors.<BR>\n" );
document.write( "Avg = 2*4*12/(4+12) = 6 mi/hr<BR>\n" );
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