document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=633335>Question 633335</A>: <I><SPAN STYLE=\"word-break: break-all;\"> john rowed 12 miles down river took 2 hour but the return trip took 3 hours<BR>\n" );
document.write( "how fast is john going with out the flow of water?\n" );
document.write( "and how fast is the current of water? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #398815 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=398815\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Boat  	speed	=x	mph						<BR>\n" );
document.write( "current     	speed	=y	mph						<BR>\n" );
document.write( "againstcurrent x-y		3	hours						<BR>\n" );
document.write( "with current x+y		2	hours						<BR>\n" );
document.write( "									<BR>\n" );
document.write( "Distance = 		12	miles		distance=		12		<BR>\n" );
document.write( "t=d/r	against	current     							<BR>\n" );
document.write( "12.00	/	(	x	-	y	)=	3.00		<BR>\n" );
document.write( "									<BR>\n" );
document.write( "3.00	x	-	-3.00	y	=	12.00	....................1	<BR>\n" );
document.write( "downstream									<BR>\n" );
document.write( "12.00	/	(	x	+	y	)=	2.00		<BR>\n" );
document.write( "2.00	(	x	+	y	)	=	12.00		<BR>\n" );
document.write( "2.00	x	+	2.00	y	=	12.00	...............2		<BR>\n" );
document.write( "Multiply (1) by	2.00								<BR>\n" );
document.write( "Multiply (2) by	3.00								<BR>\n" );
document.write( "we get									<BR>\n" );
document.write( "6.00	x	+	-6.00	y	=	24.00			<BR>\n" );
document.write( "6.00	x	+	6.00	y	=	36.00			<BR>\n" );
document.write( "12.00	x	=	60.00						<BR>\n" );
document.write( "/	12.00								<BR>\n" );
document.write( "x	=	5	mph						<BR>\n" );
document.write( "									<BR>\n" );
document.write( "plug value of x in (1)									<BR>\n" );
document.write( "3	x		-3	y	=	12			<BR>\n" );
document.write( "15			-3	y	=	12			<BR>\n" );
document.write( "-3	y	=	12	-15					<BR>\n" );
document.write( "-3	y	=	-3						<BR>\n" );
document.write( "	y	=	1	mph					<BR>\n" );
document.write( "	Boat  	5	mph						<BR>\n" );
document.write( "	current     	1	mph						<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );