document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=438769>Question 438769</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi\r<BR>\n" );
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document.write( "I'm not to sure how to begin solving this problem.\r<BR>\n" );
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document.write( "Andrea makes a trip by car at an average speed of 60mph. She returns by the same route at an average speed of 50mph.\r<BR>\n" );
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document.write( "Calculate her average speed for the entire return journey.   (5 marks) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #303317 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=303317\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let d = one-way distance.\r<BR>\n" );
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document.write( "Then average speed  = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282d%29%2F%28d%2F60+%2B+d%2F50%29+=+2%2F%281%2F60+%2B+1%2F50%29+=+600%2F11+=+54%266%2F11 ALIGN=MIDDLE  ALT=\"%282d%29%2F%28d%2F60+%2B+d%2F50%29+=+2%2F%281%2F60+%2B+1%2F50%29+=+600%2F11+=+54%266%2F11\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles per hour. </SPAN>\n" );
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