Mathematics: Aplane can fly 310 mph in still air. if it can fly 185 miles downwind in the same amount of time it can fly 125 miles upwind, find the velocity of the wind.

Aplane can fly 310 mph in still air. if it can

Ответ:

mechelllcross

05.01.2022

Let x be the velocity of the wind, then
(310+x) = plane speed downwind
(310-х) = plane speed upwind

$\frac{185}{310+x} = \frac{125}{310-x} \\ 185(310-x)=125(310+x) \\ 57350-185x=38750+125x \\ 57350-38750=125x+185x \\ 18600=310x \\ x=60 \ mph$

60 mph.

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Ответ:

gungamer720

03.02.2020

Mathematics

the first one the answer is 2

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Aplane can fly 310 mph in still air. if it can fly 185 miles downwind in the same amount of time it can fly 125 miles upwind, find the velocity of the wind.

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