3 years ago

Please help me it would be nice

Mathematics

1 answer:

Leya [2.2K]3 years ago

3 0

The answer is C
just factor every option and you will find the answer

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A plane flies 910 miles with the wind in the same time it can go 660 miles against the wind. The speed of the plane is still air

lorasvet [3.4K]

Answer:

The speed of the wind is 48.56

Step-by-step explanation:

We can use the following formula to calculate the distance:

distance = speed x time

Let w represent the speed of the wind.

If the plane flies with the wind, the speed will be the speed of the plane + the speed of wind. Since it can fly 910 miles, and the speed of the plane is 305

910 = (305 + w) x time (1)

If the plane flies against the wind, the speed will be the speed of the plane - the speed of wind. Since it can fly 660 miles, and the speed of the plane is 305

660 = (305 - w) x time (2)

Since the time is equal for both equation in 1 and 2:

$\frac{910}{305+w}$ = $\frac{660}{305-w}$