document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=825837>Question 825837</A>: <I><SPAN STYLE=\"word-break: break-all;\"> an aircraft flew 4 hours with the wind.  The return trip took 5 hours against the wind.  If the speed of the plane in still air is 168 mph more than the speed of the wind, find the wind speed and the speed of the plane in still air </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #497623 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=497623\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> an aircraft flew 4 hours with the wind.  The return trip took 5 hours against the wind.  If the speed of the plane in still air is 168 mph more than the speed of the wind, find the wind speed and the speed of the plane in still air<BR>\n" );
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document.write( "With wind DATA: time = 4 hrs ; rate = 168+w ; distance = r*t = 4(168+w) miles<BR>\n" );
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document.write( "Against wind DATA: time = 5 hrs; rate= 168-w ; distance = 5(168-w) miles<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "4*168+4w = 5*168-5w<BR>\n" );
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document.write( "9w = 168<BR>\n" );
document.write( "w = 18 2/3 mph (wind speed)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============ </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );