document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=571032>Question 571032</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sarah drove from Ajax to Bixby at an average speed of 50 mi/h. On the way back, she drove 60 mi/h. The total trip took 4 2/5 hours of driving time. Find the distance between the cities. I tried doing a chart but the answer I got just didnt make sense at all. Word problems are not my fortay. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #367926 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=367926\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sarah drove from Ajax to Bixby at an average speed of 50 mi/h. On the way back, she drove 60 mi/h. The total trip took 4 2/5 hours of driving time. Find the distance between the cities. I tried doing a chart but the answer I got just didnt make sense at all. Word problems are not my fortay.<BR>\n" );
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document.write( "Avg speed of a round trip is<BR>\n" );
document.write( "2*r1*r2/(r1 + r2)  (take my word for it, or I can prove it)<BR>\n" );
document.write( "Avg = 2*50*60/(50 + 60) = 600/11 mi/hr<BR>\n" );
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document.write( "d = r*t<BR>\n" );
document.write( "d = (600/11)*4.4 = 240 miles round-trip<BR>\n" );
document.write( "One way = 120 miles<BR>\n" );
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