document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=153431>Question 153431</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The speed of a stream is 3 mph. A boat travels 8 miles upstream at the same time it takes to travel 14 miles downstream. What is the speed of the boat in still water? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #112964 by </B><A HREF=/tutors/aboutme.mpl?userid=orca><B>orca(409)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=orca><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=112964\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x be the speed of the boat in still water.<BR>\n" );
document.write( "So<BR>\n" );
document.write( "The boat's downstream speed relative to the riverbank is x+3.<BR>\n" );
document.write( "The boat's upstream speed relative to the riverbank is x-3. <BR>\n" );
document.write( "Time spend traveling downstream is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14%2F%28x%2B3%29 ALIGN=MIDDLE  ALT=\"14%2F%28x%2B3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Time spend traveling upstream is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F%28x-3%29 ALIGN=MIDDLE  ALT=\"8%2F%28x-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "As the time spend traveling downstream is the same as the time spend traveling upstream, we have:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14%2F%28x%2B3%29=8%2F%28x-3%29 ALIGN=MIDDLE  ALT=\"14%2F%28x%2B3%29=8%2F%28x-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solving for x, we have:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B3%29%28x-3%29%2A%2814%2F%28x%2B3%29%29=%28x%2B3%29%28x-3%29%2A%288%2F%28x-3%29%29 ALIGN=MIDDLE  ALT=\"%28x%2B3%29%28x-3%29%2A%2814%2F%28x%2B3%29%29=%28x%2B3%29%28x-3%29%2A%288%2F%28x-3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > (multiply both side by (x+3)(x-3)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14%28x-3%29=8%28x%2B3%29 ALIGN=MIDDLE  ALT=\"14%28x-3%29=8%28x%2B3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14x-42=8x%2B24 ALIGN=MIDDLE  ALT=\"14x-42=8x%2B24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x=66 ALIGN=MIDDLE  ALT=\"6x=66\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=66%2F6 ALIGN=MIDDLE  ALT=\"x=66%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=11 ALIGN=MIDDLE  ALT=\"x=11\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So the speed of the boat in still water is 11 miles per hour.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );