document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=357316>Question 357316</A>: <I><SPAN STYLE=\"word-break: break-all;\"> some guy rowed 18 miles down the delaware river in two hours but the return trip took him four and a half hours find the rate this guy can row in still water and find the rate of the current \r<BR>\n" );
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document.write( "Let X = rate guy can row in still water <BR>\n" );
document.write( "Let Y = rate of current\r<BR>\n" );
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document.write( "D = r . T \r<BR>\n" );
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document.write( "Down stream x plus y <BR>\n" );
document.write( "upstream x - y  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #255180 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=255180\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Downstream speed = 18/2 = 9 mph<BR>\n" );
document.write( "Upstream = 18/4.5 = 4 mph<BR>\n" );
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document.write( "Rowing speed = the average = (9+4)/2 = 6.5 mph<BR>\n" );
document.write( "Current = the difference = 9 - 6.5 = 2.5 mph<BR>\n" );
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