A plane can travel 640 miles against the wind in the same town we can drive 100 miles with the wind. If the plane complot 180 mp

Question

Tatiana [17]

3 years ago

6

A plane can travel 640 miles against the wind in the same town we can drive 100 miles with the wind. If the plane complot 180 mp

h at income air, what is the speed of the wind?
10 mph
15 mph
20 mph

Mathematics

1 answer:

sdas [7] · Answer 1 · 2022-05-27T07:34:07+03:00

sdas [7]3 years ago

5 0

D=rtw=speed of the wind640=(180-w)t800=(180+w)t640=180t-wt800=180t+wtadd1440=360tt=1440/360t=4 hourssubstitute into either equation640=(180-w)*4divide both sides by 4160=180-w160-180=-w-20=-ww=20 miles per hour which is C.