document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=234574>Question 234574</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boat can travel 9 miles upstream in the same amount of time it takes to travel 11 miles downstream. if the current of the river is 3 miles per hour, complete the chart below and use it to find the speed of the boat in still water\r<BR>\n" );
document.write( "\n" );
document.write( "           distance  =   rate  *  Time<BR>\n" );
document.write( "upstream      9          r-3<BR>\n" );
document.write( "downstream    11         r+3    </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172959 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=172959\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We need to find the time for the up and down trip.\r<BR>\n" );
document.write( "\n" );
document.write( "We use the following equation twice to find the time going up and down: d/r = t\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Going Up:\r<BR>\n" );
document.write( "\n" );
document.write( "9 = (r + 3)t\r<BR>\n" );
document.write( "\n" );
document.write( "9/(r + 3) = t\r<BR>\n" );
document.write( "\n" );
document.write( "Going Down:\r<BR>\n" );
document.write( "\n" );
document.write( "11 = (r - 3)t\r<BR>\n" );
document.write( "\n" );
document.write( "11/(r - 3) = t\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "I will set up the equation and you can finish.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "(r + 3)(9/(r + 3) = (r - 3)(11/(r - 3)\r<BR>\n" );
document.write( "\n" );
document.write( "Can you finish now?\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );