document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=978778>Question 978778</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A man flies a small airplane from Fargo to Bismarck, North Dakota --- a distance of 180 miles. Because he is flying into a head wind, the trip takes him 2 hours. On the way back, the wind is still blowing at the same speed, so the return trip takes only 1 hour 12 minutes. What is his speed in still air, and how fast is the wind blowing?\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Your answer is <BR>\n" );
document.write( "his speed equals      <BR>\n" );
document.write( "the wind speed equals  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #600159 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=600159\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r*t=d<BR>\n" );
document.write( "with the wind<BR>\n" );
document.write( "(r+w)*1.2=180<BR>\n" );
document.write( "(r+w)=180/1.2<BR>\n" );
document.write( "r+w=150.0<BR>\n" );
document.write( "against the wind<BR>\n" );
document.write( "(r-w)*2=180<BR>\n" );
document.write( "(r-w)=180/2\r<BR>\n" );
document.write( "\n" );
document.write( "r-w=90<BR>\n" );
document.write( "r+w=150.0<BR>\n" );
document.write( "add<BR>\n" );
document.write( "r+r=150.0+90<BR>\n" );
document.write( "2r=240.0<BR>\n" );
document.write( "r=120.0 mph  rate\r<BR>\n" );
document.write( "\n" );
document.write( "120-w=90<BR>\n" );
document.write( "w=120-90<BR>\n" );
document.write( "w=30 mph wind<BR>\n" );
document.write( "check<BR>\n" );
document.write( "(120+30)*1.2=180<BR>\n" );
document.write( "150*1.2=180<BR>\n" );
document.write( "180.0=180<BR>\n" );
document.write( "ok<BR>\n" );
document.write( "(r-w)*2=180<BR>\n" );
document.write( "(120-30)*2=180<BR>\n" );
document.write( "90*2=180<BR>\n" );
document.write( "180=180<BR>\n" );
document.write( "ok<BR>\n" );
document.write( "codedrtdtt<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );