document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1092112>Question 1092112</A>: <I><SPAN STYLE=\"word-break: break-all;\"> because of the jet stream, it takes 8 hours to fly from Orlando to London and 9.5 hours to return. if an airplane averages 550 mph in still air, what is the average rate of the wind blowing in the direction from Orlando to London?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #706644 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=706644\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The distance between the two cities doesn't change.<BR>\n" );
document.write( "going east, 8(550+w)=distance<BR>\n" );
document.write( "going west 9.5(550-w)<BR>\n" );
document.write( "set them equal and distribute the constant.<BR>\n" );
document.write( "4400+8w=5225-9.5w<BR>\n" );
document.write( "17.5w=825<BR>\n" );
document.write( "w=47.14 or 47.1 mph average wind speed ANSWER<BR>\n" );
document.write( "going over speed is 597.14 mph*8 hours=4777.12 miles<BR>\n" );
document.write( "coming back speed is 502.86 mph*9.5 hours=4777.17 miles, rounding error only.<BR>\n" );
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