document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=832093>Question 832093</A>: <I><SPAN STYLE=\"word-break: break-all;\"> an airplane flying against the wind travels 140 miles in the same amount of time it would take the same plane to travel 160 miles with the wind. if the wind speed is a constant 20 miles per hour, what is the speed of the plane in still air </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #501849 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=501849\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Plane	speed	x	mph				<BR>\n" );
document.write( "wind  	speed	20	mph				<BR>\n" );
document.write( "							<BR>\n" );
document.write( "against	wind  	x	-	20	mph		<BR>\n" );
document.write( "with	wind  	x   	+	20	mph		<BR>\n" );
document.write( "							<BR>\n" );
document.write( "Distance against	wind  	140					<BR>\n" );
document.write( "Distance with	wind  	160					<BR>\n" );
document.write( "Time = same	equate the time against with time with current						<BR>\n" );
document.write( "t=d/r							<BR>\n" );
document.write( "140	/(x-	20	)=	160	/(x+	20	)<BR>\n" );
document.write( "140	*(x+	20	)=	160	*(x-	20	)<BR>\n" );
document.write( "140	x  	+	2800	=	160	x	-3200<BR>\n" );
document.write( "140	x  	-160	x   	=	-3200	+	-2800<BR>\n" );
document.write( "-20	x  	=	-6000				<BR>\n" );
document.write( "/	-20						<BR>\n" );
document.write( "	x=	300	mph				<BR>\n" );
document.write( "m.ananth@hotmail.ca							<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );