document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=566088>Question 566088</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplane flying at a constant speed can fly 800 mile with the wind in the same amount of time it can fly 600 mile against the wind.  What is the speed of the plane in still air if the wind blows at 50 mph? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #366112 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=366112\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An airplane flying at a constant speed can fly 800 mile with the wind in the same amount of time it can fly 600 mile against the wind.  What is the speed of the plane in still air if the wind blows at 50 mph?<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "a = plane's airspeed<BR>\n" );
document.write( "t = d/r<BR>\n" );
document.write( "t = 800/(a+50) = 600/(a-50)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "800a - 40000 = 600a + 30000<BR>\n" );
document.write( "200a = 70000<BR>\n" );
document.write( "a = 350 mi/hr </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );