document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=872345>Question 872345</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A small airplane takes the same amount of time to fly 200 miles against a 30-mph wind as it does to fly 300-mph wind. Find the speed of the airplane in still air.<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 #526096 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=526096\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Plane	speed	x	mph	with no	wind  			<BR>\n" );
document.write( "wind  	speed	30	mph					<BR>\n" );
document.write( "								<BR>\n" );
document.write( "against	wind  	x	-	30	mph			<BR>\n" );
document.write( "with	wind  	x   	+	30	mph			<BR>\n" );
document.write( "								<BR>\n" );
document.write( "Distance against	wind  	200						<BR>\n" );
document.write( "Distance with	wind  	300						<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( "200	/(x-	30	)=	300	/(x+	30	)	<BR>\n" );
document.write( "200	*(x+	30	)=	300	*(x-	30	)	<BR>\n" );
document.write( "200	x  	+	6000	=	300	x	-9000	<BR>\n" );
document.write( "200	x  	-300	x   	=	-9000	+	-6000	<BR>\n" );
document.write( "-100	x  	=	-15000					<BR>\n" );
document.write( "/	-100							<BR>\n" );
document.write( "	x=	150	mph					<BR>\n" );
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