An airplane flies 625 mph going with the wind and flies 575 against the wind. Write and solve a system of linear equations to find:

Answer 1

let r = rate of speed of the plane in stilll air

w = wind speed

625 = r+ w

575 = r- w

add the two equations

1200 = 2r

r = 1200/2 = 600 mph

w = 25 mph