document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=297693>Question 297693</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A cross-country flight traveling with the wind covers 3000 miles in 5 hours. The same plane then changes direction and travels to Texas, against the wind, covering 1500 miles in 3 hours. What are the wind speed, and 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 #214334 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=214334\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A cross-country flight traveling with the wind covers 3000 miles in 5 hours. The same plane then changes direction and travels to Texas, against the wind, covering 1500 miles in 3 hours. What are the wind speed, and the speed of the plane in still air?<BR>\n" );
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document.write( "3000/5 = 600 mph downwind<BR>\n" );
document.write( "1500/3 = 500 mph upwind<BR>\n" );
document.write( "The average is the airspeed, = 550 mph.<BR>\n" );
document.write( "The windspeed is the difference, 50 mph.<BR>\n" );
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document.write( "PS Airplanes use knots, not mph. 1 knot = 1 nautical mile per hour.<BR>\n" );
document.write( "\"speed in still air\" is airspeed.\r<BR>\n" );
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