document.write( "Question 944043: \"a plane travels 8400 km against the wind in 7 hours. with the wind, the plane makes the return trip in 6 hours. find the speed of the plane in still air and the speed of the wind.\"
\n" ); document.write( "i know the variables are 8400 km, 7 hours and 6 hours, but im really confused on how to set up the equation for this problem. \n" ); document.write( "

Algebra.Com's Answer #575605 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
a plane travels 8400 km against the wind in 7 hours. with the wind, the plane makes the return trip in 6 hours. find the speed of the plane in still air and the speed of the wind.\"
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\n" ); document.write( "Against::
\n" ); document.write( "dist = 8400 ; time = 7 hrs ; time = 8400/7 = 1200 mph
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\n" ); document.write( "With::
\n" ); document.write( "dist = 8400 ; time = 6 hrs ; time = 8400/6 = 1400 mp
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\n" ); document.write( "Equations:
\n" ); document.write( "Against:: p - w = 1200
\n" ); document.write( "With:::: p + w = 1400
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\n" ); document.write( "Add and solve for \"p\"
\n" ); document.write( "2p = 2600
\n" ); document.write( "plane speed = 1300 mph (speed in still air)
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\n" ); document.write( "Subtract and solve for \"w\"
\n" ); document.write( "2w = 200
\n" ); document.write( "w = 100 mph (speed of the wind)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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