document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=693156>Question 693156</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a small plane can travel at 110 mph in calm air. flying with the wind, the plane can fly 260 miles in the same amount of time it takes to fly 180 miles against the wind. fine the rate of the wind </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #427301 by </B><A HREF=/tutors/aboutme.mpl?userid=DrBeeee><B>DrBeeee(684)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=DrBeeee><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=427301\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let w = wind speed, mph<BR>\n" );
document.write( "Let t = time to travel, hr<BR>\n" );
document.write( "Use the following two equations to solve for w then t.<BR>\n" );
document.write( "(1) (110 + w)*t = 260 and<BR>\n" );
document.write( "(2) (110 - w)*t = 180<BR>\n" );
document.write( "You should get <BR>\n" );
document.write( "(3) w = 20 mph and<BR>\n" );
document.write( "(4) t = 2 hr<BR>\n" );
document.write( "Answer: The rate of the wind is 20 mph.<BR>\n" );
document.write( "If you need help solving (1) and (2), just divide (1) by (2) and get<BR>\n" );
document.write( "(5) (110 + w)/(110 - w) = 260/180 or<BR>\n" );
document.write( "(6) 110 + w = 13/9*(110 - w) or<BR>\n" );
document.write( "(7) 990 + 9*w = 13*110 - 13*w or<BR>\n" );
document.write( "(8) 22*w = 1100 + 330 - 990 or<BR>\n" );
document.write( "(9) 22*w = 440 or<BR>\n" );
document.write( "(10) w = 20 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );