document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=664870>Question 664870</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One plane can travel 50 miles per hour faster than another. One of them goes 240 miles in same time it takes the other to go 165 miles. What are their speeds? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #413500 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=413500\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Plane I		x	mph						<BR>\n" );
document.write( "Plane II		50	faster	x	+	50	mph		<BR>\n" );
document.write( "									<BR>\n" );
document.write( "Plane I		165	miles						<BR>\n" );
document.write( "Plane II		240	miles						<BR>\n" );
document.write( "Plane I	time	=	Plane II		time				<BR>\n" );
document.write( "t=d/r									<BR>\n" );
document.write( "165	/	x	=	240	/(	x	+	50	)<BR>\n" );
document.write( "cross multiply									<BR>\n" );
document.write( "165	(	x	+	50	)	=	240	x	<BR>\n" );
document.write( "165	x	+	8250	=	240	x			<BR>\n" );
document.write( "165	x	-	240	x	=	-8250			<BR>\n" );
document.write( "-75	x	=	-8250						<BR>\n" );
document.write( "/	-75								<BR>\n" );
document.write( "x	=	110      	mph	\r<BR>\n" );
document.write( "\n" );
document.write( "Plane I		110	mph						<BR>\n" );
document.write( "Plane II		50	faster	110	+	50	=160 mph							<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );