document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=876525>Question 876525</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boat that travels 10mph in still water takes 1 hour longer to travel 24 miles against the current than it does to paddle the same distance with the current . Find the speed of 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 #528840 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=528840\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Boat speed	=	10	mph										<BR>\n" );
document.write( "current speed	=	x	mph										<BR>\n" );
document.write( "													<BR>\n" );
document.write( "speed against	current	10	-	x									<BR>\n" );
document.write( "speed with	current	10	+	x									<BR>\n" );
document.write( "													<BR>\n" );
document.write( "Distance against	current	24	miles										<BR>\n" );
document.write( "Distance with	current	24	miles										<BR>\n" );
document.write( "													<BR>\n" );
document.write( "t=d/r	time against = time with		current	-									<BR>\n" );
document.write( "24	/	(	10	-	x	)-	24	/	(	10	+	x	)=1\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "24(10+x)-24(10-x)=100-x^2\r<BR>\n" );
document.write( "\n" );
document.write( "240+24x-240+24x=100-x^2\r<BR>\n" );
document.write( "\n" );
document.write( "x^2+48x-100=0\r<BR>\n" );
document.write( "\n" );
document.write( "x^2+50x-2x-100=0\r<BR>\n" );
document.write( "\n" );
document.write( "x(x+50)-2(x+50)=0\r<BR>\n" );
document.write( "\n" );
document.write( "(x+50)(x-2)=0\r<BR>\n" );
document.write( "\n" );
document.write( "x= 2 OR -50\r<BR>\n" );
document.write( "\n" );
document.write( "ignore negative\r<BR>\n" );
document.write( "\n" );
document.write( "speed of current = 2mph </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );