document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=444837>Question 444837</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A plane traveling at 450 mph can go 1000 miles with the wind in 1/2 hour less than than against the wind - find wind speed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #315354 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=315354\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1000/(450+w)+1/2=1000/(450-w)<BR>\n" );
document.write( "2000/(450+w)+1=2000/(450-w)<BR>\n" );
document.write( "2000(450-w)+202500-w2=2000(450+w)<BR>\n" );
document.write( "900000-2000w-w2+202500=900000+2000w<BR>\n" );
document.write( "w2+4000w-202500=0<BR>\n" );
document.write( "(w+4050)(w-50)=0<BR>\n" );
document.write( "w=50 or -4050<BR>\n" );
document.write( "Throwing out the negative answer, we get the speed of the wind to be 50 mph.. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );