document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=284253>Question 284253</A>: <I><SPAN STYLE=\"word-break: break-all;\"> with the current, joe can row a canoe 3 miles in 12 mins.  Against the current, he requires 18 minutes to row same distance.  HOw fast does joe row in still water, and how fast is 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 #206248 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=206248\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = Joe's speed in still water\r<BR>\n" );
document.write( "\n" );
document.write( "Let y = speed of current\r<BR>\n" );
document.write( "\n" );
document.write( "Since there are two things we are solving for, we are looking at a system of linear equations in two variables.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Against Current:\r<BR>\n" );
document.write( "\n" );
document.write( "rate = x - y\r<BR>\n" );
document.write( "\n" );
document.write( "time = 0.20\r<BR>\n" );
document.write( "\n" );
document.write( "distance = 3\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "0.20(x - y) = 3\r<BR>\n" );
document.write( "\n" );
document.write( "0.20x - 0.20y = 3...This is our first equation.\r<BR>\n" );
document.write( "\n" );
document.write( "===============================================\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "With Current:\r<BR>\n" );
document.write( "\n" );
document.write( "rate = x + y\r<BR>\n" );
document.write( "\n" );
document.write( "time = 0.30\r<BR>\n" );
document.write( "\n" );
document.write( "distance = 3\r<BR>\n" );
document.write( "\n" );
document.write( "0.30(x + y) = 3\r<BR>\n" );
document.write( "\n" );
document.write( "0.30x + 0.30y = 3...This is our second equation.\r<BR>\n" );
document.write( "\n" );
document.write( "================================================\r<BR>\n" );
document.write( "\n" );
document.write( "Here they are together:\r<BR>\n" );
document.write( "\n" );
document.write( "0.20x - 0.20y = 3<BR>\n" );
document.write( "0.30x + 0.30y = 3\r<BR>\n" );
document.write( "\n" );
document.write( "Can you finish now? </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );