Problema Solution
a plane flies 430 miles with the wind and 340 miles against the wind in the same length of time. if the speed of the wind is 27 mph, what is the speed of the plane in still air?
Answer provided by our tutors
(S+27)T = 430
(S-27)T = 340 or (S-27)T + 90 = 430
ST + 27 T = ST - 27T + 160
54T = 160 so T = 2.96296 hours