document.write( "Question 347104: if a plane can travel 480mph with the wind and 380 against the wind, what is the plane's speed in still air? \n" ); document.write( "
Algebra.Com's Answer #248196 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! It's the average (480 + 380)/2 \n" ); document.write( "= 430 mph \n" ); document.write( "-------------- \n" ); document.write( "It's called airspeed, not \"speed in still air\" \n" ); document.write( "And planes use knots, not mph. \n" ); document.write( "1 knot = 1 nautical mile per hour \n" ); document.write( " \n" ); document.write( " |