document.write( "Question 476972: it took the pilot an hour and a half to make a flight of 240 miles when flying a against headwind. The return trip took an hour and twelve minutes(the wind had not shifted nor changed its speed.) What it the speed of the wind? \n" ); document.write( "

Algebra.Com's Answer #327003 by mananth(16946) $\"\"$ $\"About$

You can put this solution on YOUR website!
Plane speed speed= x mph
\n" ); document.write( "Wind speed speed= y mph
\n" ); document.write( "with wind speed= (x+y)
\n" ); document.write( "against wind speed (x-y)
\n" ); document.write( "d= 240
\n" ); document.write( "240 / (x+y) = 1.2
\n" ); document.write( "divide by 1.2
\n" ); document.write( "200 / (x+y) = 1
\n" ); document.write( "(x+y) = 200 ............1
\n" ); document.write( "d= = 240
\n" ); document.write( "27/(x-y) = 1.20
\n" ); document.write( "divide by 1.20
\n" ); document.write( "240 /(x-y) = 1.5
\n" ); document.write( "x - y = 160 .............2
\n" ); document.write( "add up (1) & (2)
\n" ); document.write( "2 x = 360
\n" ); document.write( "/ 2
\n" ); document.write( "x= 180 mph speed of Plane speed in still air
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "we get y= 20 mph speed of Wind speed
\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( "

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