document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=863896>Question 863896</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write a system of equations to model the problem and solve. Please show all work<BR>\n" );
document.write( "Theo flies from Atlanta to San Francisco.  It takes 5.6 hours to travel 2100 miles against the head wind.  At the same time, Della flies from San Francisco to Atlanta.  Her plane travels with the same avergae air speed. but with the tail wind. it only takes her 4.8 hours.  Find the air speed and the wind speed.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #520689 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=520689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Plane 	speed	=x	mph	(both speeds are same)				<BR>\n" );
document.write( "wind  	speed	=y	mph					<BR>\n" );
document.write( "against  	wind	5.6	hours					<BR>\n" );
document.write( "with	wind	4	hours					<BR>\n" );
document.write( "								<BR>\n" );
document.write( "Distance against 		2100	miles	distance with 		2100	miles	<BR>\n" );
document.write( "t=d/r	against	wind		-				<BR>\n" );
document.write( "2100.00	/	(	x	-	y	)=	5.60	<BR>\n" );
document.write( "5.60	(	x	-	y	)	=	4.00	<BR>\n" );
document.write( "5.60	x	-	5.60	y	=	2100.00	....................1	<BR>\n" );
document.write( "								<BR>\n" );
document.write( "2100.00	/	(	x	+	y	)=	4.00	<BR>\n" );
document.write( "4.00	(	x	+	y	)	=	2100.00	<BR>\n" );
document.write( "4.00	x	+	4.00	y	=	2100.00	...............2	<BR>\n" );
document.write( "Multiply (1) by	4.00							<BR>\n" );
document.write( "Multiply (2) by	5.60							<BR>\n" );
document.write( "we get								<BR>\n" );
document.write( "22.40	x	+	-22.40	y	=	8400.00		<BR>\n" );
document.write( "22.40	x	+	22.40	y	=	11760.00		<BR>\n" );
document.write( "44.80	x	=	20160.00					<BR>\n" );
document.write( "/	44.80							<BR>\n" );
document.write( "x	=	450.00	mph					<BR>\n" );
document.write( "								<BR>\n" );
document.write( "plug value of x in (1)				y				<BR>\n" );
document.write( "5.60	x		-5.60	y	=	2100.00		<BR>\n" );
document.write( "2520.00			-5.60	-2520.00	=	2100.00		<BR>\n" );
document.write( "-5.60	y	=	2100.00					<BR>\n" );
document.write( "-5.60	y	=	-420.00	mph				<BR>\n" );
document.write( "	y	=	75.00					<BR>\n" );
document.write( "Plane 	speed	450.00	mph					<BR>\n" );
document.write( "wind  	speed	75.00	mph					<BR>\n" );
document.write( "								<BR>\n" );
document.write( "m.ananth@hotmail.ca								     <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );