document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=331824>Question 331824</A>: <I><SPAN STYLE=\"word-break: break-all;\"> With a certain tail wind, a airplane reached its destination 630 miles away in 1 1/2 hours. Flying back against the same wind, the plane took 15 minutes longer to make the trip. Find the wind speed and the plane's air speed.\r<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 #237840 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=237840\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> With a certain tail wind, a airplane reached its destination 630 miles away in 1 1/2 hours. Flying back against the same wind, the plane took 15 minutes longer to make the trip. Find the wind speed and the plane's air speed. <BR>\n" );
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document.write( "630/1.5 = 420 mph<BR>\n" );
document.write( "630/1.75 = 360 mph<BR>\n" );
document.write( "The airspeed is the average = (420+360)/2 = 390 mph<BR>\n" );
document.write( "The wind speed is the difference, = 30 mph<BR>\n" );
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