document.write( "Question 943843: AIRSPEED It takes a private airplane 8.75 hours to make the
\n" ); document.write( "2,100-mile flight from Atlanta to Los Angeles and 5 hours to make the
\n" ); document.write( "return trip. Assuming that the wind blows at a constant rate from Los
\n" ); document.write( "Angeles to Atlanta, find the airspeed of the plane and the wind rate.
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Algebra.Com's Answer #575454 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
It takes a private airplane 8.75 hours to make the 2,100-mile flight from Atlanta to Los Angeles and 5 hours to make the return trip.
\n" ); document.write( "Assuming that the wind blows at a constant rate from Los
\n" ); document.write( "Angeles to Atlanta, find the airspeed of the plane and the wind rate.
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\n" ); document.write( "ATL to LA DATA:
\n" ); document.write( "time = 8.75 hrs ; distance = 2100 ; rate = d/t = 2100/8.75 = 240 mph
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\n" ); document.write( "LA to ATL DATA:
\n" ); document.write( "time = 5 hrs ; distance = 2100 ; rate = d/t = 2100/5 = 420 mph
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\n" ); document.write( "Equation:
\n" ); document.write( "With-wind:: p + w = 420 mph
\n" ); document.write( "Against ::: p - w = 240 mph
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\n" ); document.write( "Add and solve for \"p\"::
\n" ); document.write( "2p = 660
\n" ); document.write( "plane = 330 mph (speed in still air]
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\n" ); document.write( "Subtract and solve for \"w\"::
\n" ); document.write( "2w = 180
\n" ); document.write( "w = 90 mph (wind rate)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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