document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=468234>Question 468234</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Meg rowed her boat upstream a distance of 5 miles and then rowed back to the starting point. The total time of the trip was 6 hours. If the rate of the current was 2 mph, find the average speed of the boat relative to the water.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #321276 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=321276\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Boat speed		x   		<BR>\n" );
document.write( "current speed 		2		<BR>\n" );
document.write( "				<BR>\n" );
document.write( "against current x-2	mph	<BR>\n" );
document.write( "with current x+	2	mph	<BR>\n" );
document.write( "				<BR>\n" );
document.write( "Distance= 5	miles		<BR>\n" );
document.write( "				<BR>\n" );
document.write( "Time against + time with  = 6	hours\r<BR>\n" );
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document.write( "5	/(	x   	+	2	)	+	5	/(x	-	2	)	=	6				<BR>\n" );
document.write( "																	<BR>\n" );
document.write( "LCD =	(x	-	2	)	(	x   	+	2	)								<BR>\n" );
document.write( "5	*(	x   	-	2	)	+	5	(x	+	2	)	=	6				<BR>\n" );
document.write( "5	x   	-	10	+	5	x   	+	10		=	6	(	x ^2		-	4	)<BR>\n" );
document.write( "10	x   	=	6	x ^2	-	24											<BR>\n" );
document.write( "6	x ^2	-	-10	x   	-	24											<BR>\n" );
document.write( "																	<BR>\n" );
document.write( "Find the roots of the equation by quadratic formula			<BR>\n" );
document.write( "a=	6	,	b=	-10	,	c=	-24		<BR>\n" );
document.write( "b^2-4ac=	100	+	576					<BR>\n" );
document.write( "b^2-4ac=676	<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%09sqrt%28%09676%09%29=%0926%09 ALIGN=MIDDLE  ALT=\"%09sqrt%28%09676%09%29=%0926%09\"   DISABLED_style= \"max-width:90%; height:auto;\" >									<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >																	<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >																	<BR>\n" );
document.write( "x1=(10+26)/12												<BR>\n" );
document.write( "x1=3																<BR>\n" );
document.write( "x2=(10-26)/12													<BR>\n" );
document.write( "x2= 	-1.33																<BR>\n" );
document.write( "Ignore negative value											<BR>\n" );
document.write( "Speed of boat is 3 mph						\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );