document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=469091>Question 469091</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Elaan paddled out to check on her crab traps. Going to the traps she caught a falling tide, that increased her normal speed by 2mph. but coming back it decreased her speed by 2 mph. Going with the tide , the trip took only 10 min. The return, against the tide, took 20 min. How far out are the traps from the shore?\r<BR>\n" );
document.write( "\n" );
document.write( "I've tried to set up the chart and declare the variables but I've only seen current problems where the the unknown is the speed of the current/boat. I don't know how to set up the system to find the distance. Help Please =) Thank you for your time. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #321847 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=321847\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let boat speed = x<BR>\n" );
document.write( "with current = x+2 mph ----- time = 10 minutes<BR>\n" );
document.write( "against current = x-2 mph----time = 20 minutes\r<BR>\n" );
document.write( "\n" );
document.write( "Distance = same both ways\r<BR>\n" );
document.write( "\n" );
document.write( "r*t = distance\r<BR>\n" );
document.write( "\n" );
document.write( "1/6(x+2)= 1/3(x-2)\r<BR>\n" );
document.write( "\n" );
document.write( "3(x+2)=6(x-2)\r<BR>\n" );
document.write( "\n" );
document.write( "3x+6=6x-12<BR>\n" );
document.write( "6x-3x=18<BR>\n" );
document.write( "3x=18<BR>\n" );
document.write( "x=6\r<BR>\n" );
document.write( "\n" );
document.write( "D= rt<BR>\n" );
document.write( "D= 1/6 *8= 4/3 miles\r<BR>\n" );
document.write( "\n" );
document.write( "D=rt<BR>\n" );
document.write( "D= 1/3*4= 4/3 miles\r<BR>\n" );
document.write( "\n" );
document.write( "Distance was 4/3 miles\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );