document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=436798>Question 436798</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A canoeist paddled 6 miles upstream in 6 hours and returned to his starting point downstream in 45 minutes. What was the speed of the current? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #302158 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=302158\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A canoeist paddled 6 miles upstream in 6 hours and returned to his starting point downstream in 45 minutes. What was the speed of the current?\r<BR>\n" );
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document.write( "distance = same both ways\r<BR>\n" );
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document.write( "let speed of canoe be x mph<BR>\n" );
document.write( "current speed = y mph<BR>\n" );
document.write( "..<BR>\n" );
document.write( "speed = distance/time<BR>\n" );
document.write( "against current x-y = 6/6<BR>\n" );
document.write( "with current  x+y = 6/(3/4)===>6*4/3===>8\r<BR>\n" );
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document.write( "x-y =1<BR>\n" );
document.write( "x+y=8\r<BR>\n" );
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document.write( "Add the two equations<BR>\n" );
document.write( "2x=9<BR>\n" );
document.write( "x= 4.5 mph speed of boat<BR>\n" );
document.write( "speed of current = 8-4.5 = 3.5 mph </SPAN>\n" );
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