document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=292740>Question 292740</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplne flew for 4 hours with a 20 km/hour tail wind.  The return flight against the same wind took 5 hours.  Find the speed of the plane in still air.\r<BR>\n" );
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document.write( "I am having trouble finding the distance flown to figure out the answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #211386 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=211386\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You don't need the distance to solve.<BR>\n" );
document.write( "r*t=d<BR>\n" );
document.write( "r*t=r*t\r<BR>\n" );
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document.write( "The plane flew the same distance in both directions.<BR>\n" );
document.write( "For 4 hours the plane flew with the wind pushing it. <BR>\n" );
document.write( "For 5 hours return the wind blew against the plane.\r<BR>\n" );
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document.write( "So set them equal.<BR>\n" );
document.write( "(p+20)*4=(p-20)*5<BR>\n" );
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