document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=865685>Question 865685</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi there, Im having a very hard time figuring out how to set up this word problem.  I know the answer is 153 mph from the back of the book… I just need to know how to solve it:\r<BR>\n" );
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document.write( "Horizons has a manufacturing plant 300 mi from company headquarters.  Their corporate pilot must fly from headquarters to the plant and back in 4 hr.  Is there is a 20-mph headwind going and a 20-mph tailwind returning, how fast must the plane be able to travel 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 #521836 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=521836\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a+b=4,<BR>\n" );
document.write( "a*(x-20)=300,<BR>\n" );
document.write( "b*(x+20)=300<BR>\n" );
document.write( "a=2.26209,   b=1.73791,   x=152.621 rounded =153<BR>\n" );
document.write( "133 mph against the wind for  2.26 hours<BR>\n" );
document.write( "173 mph with the wind for 1.74 hours \r<BR>\n" );
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document.write( " </SPAN>\n" );
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