shanea1
shanea1 shanea1
  • 16-08-2017
  • Mathematics
contestada

What is the speed of the plane with no wind ?

What is the speed of the plane with no wind class=

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mreijepatmat
mreijepatmat mreijepatmat
  • 16-08-2017
Speed = V = Distance/ Time. 

Let V be speed of the plane WITHOUT wind
Let v₁ be the SPEED OF THE WIND
When the wind is against, the resulting speed will be V-v₁ and if for the 
wind (with), the resulting speed = V+v₁ 

V-v₁ = 1680/5 = 336 Mi/h

V+v₁ = 1680/4 = 420 Mi/h

Add up the right side and same with the left side

2V + 0 = 336 + 420
2V = 756
V = 378 Mi/h (with no wind)

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