document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=447163>Question 447163</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Matt and Anna Killian are frequent fliers on fast-n-go airlines. They often fly between two cities that are a distance of 1680 miles apart. on one particular trip, they flew into the wind and the trip took 4 hours. The return trip with the wind behind them, only took about 3.5 hours. find the speed of the wind 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 #307915 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=307915\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1680/4=420<BR>\n" );
document.write( "1680/3.5=480<BR>\n" );
document.write( "x+c=480<BR>\n" );
document.write( "x-c=420<BR>\n" );
document.write( "2x=900<BR>\n" );
document.write( "x=450<BR>\n" );
document.write( "The planes speed is 450 mph. The wind is 30 mph.. </SPAN>\n" );
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