Question

An airplaine travels against a 52.5 mph wind in 5 hours and makes the return trip with the same wind in 2 hours. find the speed of the plane in still air

Answer 1

Plane speed w.r.t to wind-a
5(a-52.25)=2(a+52.25)

Answer 2

They are equal because same distance is travelled

Answer 3

On left side you are going against wind, right side going with the wind

Answer 4

what would be the next step

Answer 5

5(a-52.25)=2(a+52.25)
Solve for a

Answer 6

im not sure how to do that

Answer 7

distribute 5 into parethesis on left side. Distribute 2 into parenthesis