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3 years ago

PLEASE THIS IS DUE AT MIDNIGHT LOL:

Mathematics

2 answers:

Bingel [31]3 years ago

7 0

Answer:

186.55 mph

Step-by-step explanation:

Let the speed of the plane be s

The speed of the plane in the same direction is

s + 12

The speed of the plane against wind is

s - 12

Time = distance/speed

455/(s + 12) = 400/(s - 12)

Solving for s

400(s + 12) = 455(s - 12)
400s + 400*12 = 455s - 455*12
455s - 400s = (400 + 455)*12
55s = 10260
s = 10260/55
s = 186.55 mph

Free_Kalibri [48]3 years ago

4 0

if a plane flies 455 miles with wind, and takes 400 against the wind, and the wind is blowing at a speed of 12mph, then the plane can fly 2455 miles if it's still in the air

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