document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=868456>Question 868456</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A plane traveled 300 miles to houston and back. The trip there was with the wind. It took 3 hours. The trip back was into the wind. The trip back took 5 hours. Find the speed of the plane in stil air and the speed of the wind.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #523555 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=523555\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Plane	speed	=x	mph					<BR>\n" );
document.write( "wind  	speed	=y	mph					<BR>\n" );
document.write( "against  	wind  	5	hours					<BR>\n" );
document.write( "with	wind  	3	hours					<BR>\n" );
document.write( "								<BR>\n" );
document.write( "Distance against 		300	miles	distance with 		300	miles	<BR>\n" );
document.write( "t=d/r	against	wind  		-				<BR>\n" );
document.write( "300.00	/	(	x	-	y	)=	5.00	<BR>\n" );
document.write( "5.00	(	x	-	y	)	=	3.00	<BR>\n" );
document.write( "5.00	x	-	5.00	y	=	300.00	....................1	<BR>\n" );
document.write( "								<BR>\n" );
document.write( "300.00	/	(	x	+	y	)=	3.00	<BR>\n" );
document.write( "3.00	(	x	+	y	)	=	300.00	<BR>\n" );
document.write( "3.00	x	+	3.00	y	=	300.00	...............2	<BR>\n" );
document.write( "Multiply (1) by	3.00							<BR>\n" );
document.write( "Multiply (2) by	5.00							<BR>\n" );
document.write( "we get								<BR>\n" );
document.write( "15.00	x	+	-15.00	y	=	900.00		<BR>\n" );
document.write( "15.00	x	+	15.00	y	=	1500.00		<BR>\n" );
document.write( "30.00	x	=	2400.00					<BR>\n" );
document.write( "/	30.00							<BR>\n" );
document.write( "x	=	80.00	mph					<BR>\n" );
document.write( "								<BR>\n" );
document.write( "plug value of x in (1)				y				<BR>\n" );
document.write( "5.00	x		-5.00	y	=	300.00		<BR>\n" );
document.write( "400.00			-5.00	-400.00	=	300.00		<BR>\n" );
document.write( "-5.00	y	=	300.00					<BR>\n" );
document.write( "-5.00	y	=	-100.00	mph				<BR>\n" );
document.write( "	y	=	20.00					<BR>\n" );
document.write( "Plane	speed	80.00	mph					<BR>\n" );
document.write( "wind  	speed	20.00	mph					<BR>\n" );
document.write( "								<BR>\n" );
document.write( "m.ananth@hotmail.ca								     <BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );