document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1056020>Question 1056020</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A paddle boat can move at a speed of 2 &#8203;km/h in still water. The boat is paddled 14<BR>\n" );
document.write( " <BR>\n" );
document.write( "km downstream in a river in the same time it takes to go 7 km upstream. What is the speed of the&#8203; river? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #671207 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=671207\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28r=2%2Cd=14%2Cu=7%2Ct=unknownTimeBothDirections%2Cc=unknownRiverCurrentSpeed%29 ALIGN=MIDDLE  ALT=\"system%28r=2%2Cd=14%2Cu=7%2Ct=unknownTimeBothDirections%2Cc=unknownRiverCurrentSpeed%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "                  SPEED      TIME     DISTANCE\r\n" );
document.write( "DOWNSTREAM         r+c        t        d\r\n" );
document.write( "UPSTREAM           r-c        t        u\r\n" );
document.write( "</PRE>\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28t=d%2F%28r%2Bc%29%2Cand%2Ct=u%2F%28r-c%29%29 ALIGN=MIDDLE  ALT=\"system%28t=d%2F%28r%2Bc%29%2Cand%2Ct=u%2F%28r-c%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F%28r%2Bc%29=u%2F%28r-c%29 ALIGN=MIDDLE  ALT=\"d%2F%28r%2Bc%29=u%2F%28r-c%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%28r-c%29=u%28r%2Bc%29 ALIGN=MIDDLE  ALT=\"d%28r-c%29=u%28r%2Bc%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dr-dc=ur%2Buc ALIGN=MIDDLE  ALT=\"dr-dc=ur%2Buc\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dr-ur=uc%2Bdc ALIGN=MIDDLE  ALT=\"dr-ur=uc%2Bdc\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dr-ur=%28u%2Bd%29c ALIGN=MIDDLE  ALT=\"dr-ur=%28u%2Bd%29c\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%28dr-ur%29%2F%28u%2Bd%29=c%29 ALIGN=MIDDLE  ALT=\"highlight%28%28dr-ur%29%2F%28u%2Bd%29=c%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );