document.write( "Question 644432: A direct flight on delta air lines from atlanta to paris is 4000 miles and takes approximately 8 hours going east(atlanta to paris) and 10 hours going west(paris to atlanta). although the plane averages the same airspeed, there is a headwind while traveling east, resulting in a different air speeds. What is the average air speed of the plane and what is the average wind speed? \n" ); document.write( "

Algebra.Com's Answer #405040 by Alan3354(69443) $\"\"$ $\"About$

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A direct flight on delta air lines from atlanta to paris is 4000 miles and takes approximately 8 hours going east(atlanta to paris) and 10 hours going west(paris to atlanta). although the plane averages the same airspeed, there is a headwind while traveling east, resulting in a different air speeds. *** The airspeed is the same, the groundspeeds are different. ***\r
\n" ); document.write( "\n" ); document.write( "What is the average air speed of the plane and what is the average wind speed?
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\n" ); document.write( "4000/8 = 500 mi/hr
\n" ); document.write( "4000/10 = 400 mi/hr
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\n" ); document.write( "The plane's airspeed is the average = (500+400)/2 = 450 mi/hr
\n" ); document.write( "The windspeed is the difference = 500 - 450 = 50 mi/hr
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