An airplane takes four hours to travel a distance of 2800 miles with the wind. The return trip takes 5 hours against the wind. Find the speed of the plane in still air and the speed of the wind

The speed of the plane is__ mph.

And the speed of the wind is__ mph.

648mph and 72 mph

Step-by-step explanation:

velocity Against wind=2880/5=576Mph

velocity with the wind =2880/4=720mph

let x be speed of plane y be speed of wind

then velocity with winf=720

x+y=720

velocity against the wind=576

x-y=576

using both

2x=1296

x=648mph

and y=72mph

on friday there were 15 birds

555.99.

step-by-step explanation:

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