Question 724220
D=RT
600=(R-W)4 AGAINST THE WIND.
600=4R-4W
600=(R+W)1 WITH THE WIND.
600=R+W
R=600-W SUBSTITUTE (600-W) FOR R IN THE FIRST EQUATION & SOLVE FOR W.
600=(600-W-W)4
600=(600-2W)4
600=2400-8W
8W=2400-600
8W=1800
W=1800/8
W=225 MPH. FOR THE WIND.
R=600-225
R=375 FOR THE RATRWE OF THE PLANE INSTILL AIR.
PROOF:
600=(375-225)4
600=150*4
600=600