document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=274196>Question 274196</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi.  I have been stumbling with this one and I am happy to have found this site!! I shouldn't be having a problem, but I am--- road block!!!<BR>\n" );
document.write( " - Two planes having the same airspeed depart simultaneously from the airport, flying in opposite directions.  One plane flies directly into a 35mph wind, and the other flies in the same direction as the wind.  After a period of time, one plane has traveled 460 miles abd the other has traveled 404 miles.  Let x= the airspeed of each plane (note: this is only possible because the airspeed is the same.)  <BR>\n" );
document.write( "  I know d=rt.  I have r=x-35mph for the one going to the wind and x+35mph for the other.   Do I simply go 460=35t for the one going with the wind?<BR>\n" );
document.write( "  I am lost here and not sure if I am thinking too much on it.  Thank you for your help!!!!! rl </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #200120 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=200120\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two planes having the same airspeed depart simultaneously from the airport, flying in opposite directions.<BR>\n" );
document.write( "------ <BR>\n" );
document.write( "One plane flies directly into a 35mph wind, and the other flies in the same direction as the wind.<BR>\n" );
document.write( "---- <BR>\n" );
document.write( "After a period of time, one plane has traveled 460 miles abd the other has traveled 404 miles.<BR>\n" );
document.write( "--- <BR>\n" );
document.write( "Let x= the airspeed of each plane (note: this is only possible because the airspeed is the same.) <BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Downwind DATA:<BR>\n" );
document.write( "Rate: x+35 mph ; distance = 460 miles ; time = d/r = 460/(x+35) hrs.<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "Upwind DATA:<BR>\n" );
document.write( "Rate: x-35 mph ; distance = 404 miles ; time = d/r = 404/(x-35) hrs.<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "time = time<BR>\n" );
document.write( "460/(x+35) = 404/(x-35)<BR>\n" );
document.write( "460(x-35) = 404(x+35)<BR>\n" );
document.write( "460x - 460*35 = 404x + 404*35<BR>\n" );
document.write( "----<BR>\n" );
document.write( "56x = 864*35<BR>\n" );
document.write( "x = 540 mph<BR>\n" );
document.write( "=========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );