document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=117765>Question 117765</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/1592009425/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A plane traveled 864 miles to Kampala and back. The trip there was with the wind. It took 9 hours. The trip back was into the wind. The trip back took 16 hours. Find the speed of the plane in still air and the speed of the wind. show work. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #85736 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=85736\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A plane traveled 864 miles to Kampala and back. The trip there was with the wind. It took 9 hours. The trip back was into the wind. The trip back took 16 hours. Find the speed of the plane in still air and the speed of the wind. show work.<BR>\n" );
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document.write( "Let plane speed be \"p\"; Let wind speed be \"w\".<BR>\n" );
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document.write( "To Kampala DATA:<BR>\n" );
document.write( "Distance = 864 miles ; Time = 9 hrs. Rate = 864/9 = 96 mph<BR>\n" );
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document.write( "From Kampala DATA:<BR>\n" );
document.write( "Distance = 864 miles ; time = 16 hrs ; Rate = 864/(16) = 54 mph<BR>\n" );
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document.write( "EQUATIONS:<BR>\n" );
document.write( "p+w = 96<BR>\n" );
document.write( "p-w = 54<BR>\n" );
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document.write( "2p = 150<BR>\n" );
document.write( "p = 75 mph (speed of the plane in still air)<BR>\n" );
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document.write( "75+w = 96<BR>\n" );
document.write( "w = 21 mph (speed of the wind)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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