Question 185645
D=RT or D/T=R
2200/4=R
550=R IS THE SPEED WITH THE WIND.
2200/5=T
440=R IS THE SPEED AGAINST THE WIND.
(550-440)/2=110/2=55 MPH IS THE WIND SPEED.
550-55=495 MPH IS THE PLANE SPEED
440+55=495 DITTO.