document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=203528>Question 203528</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A plane can fly at a 1720 miles in 5 hours against the wind at max speed.  The same plane can fly 1720 miles in 4 hours with the wind at max speed.  What is the speed of the plane with no wind?  Let x = max speed, and y = 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 #153562 by </B><A HREF=/tutors/aboutme.mpl?userid=rfer><B>rfer(16322)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rfer><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=153562\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-y=430<BR>\n" );
document.write( "x+y=344<BR>\n" );
document.write( "(x=344-y)<BR>\n" );
document.write( "344-y-y=430<BR>\n" );
document.write( "-2y=86<BR>\n" );
document.write( "-y=43<BR>\n" );
document.write( "y=-43<BR>\n" );
document.write( "wind speed =43mph<BR>\n" );
document.write( "airplane speed =387mph </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );