document.write( "Question 414654: A plane traveled 480 miles to Lisbon and back. the trip was with wind. it took 4 hours. the trip back was into the air. the trip back took 8 hours. find the speed of the plane in still air and the speed of the wind. \r
\n" ); document.write( "\n" ); document.write( "so far..i divided 480/4 = 120 (wind) and i divided 480/8 = 60 (air)
\n" ); document.write( "but i don't know how to set the equation up.\r
\n" ); document.write( "\n" ); document.write( "if you could that would be great! :) \n" ); document.write( "

Algebra.Com's Answer #290860 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi
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document.write( "A plane traveled 480 miles to Lisbon and back. the trip was with wind. it took 4 hours. 
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document.write( "the trip back was into the air. the trip back took 8 hours.
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document.write( "s + w = 120mph     |480mi/4hr = 120mph    Good Work.
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document.write( "s - w =  60mph       |480mi/8hr = 60mph     Good Work.
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document.write( " 2s = 180mph
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document.write( "  s = 90mph
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document.write( "  w = 30mph   ( w = 120mph-90 ) from 1st Eq\r
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