Question

The temperature is 50 degrees Fahrenheit. The temperature will decrease by 4 degrees F. each hour. Let h be the number of hours.

When will the temperature be below 32 degrees F.?
(The pic has the options for the answer.)

Answer 1

The correct answer choice is B

Answer 2

Option B is correct

`50-4h < 32`

Explanation:

Here, h be the number of hours.

As per the statement:

The temperature is 50 degrees Fahrenheit.

⇒Initial temperature = 50 degrees Fahrenheit

It is also given that:

The temperature will decrease by 4 degrees F each hour.

1 hour temperature will be = -4 degree F

then;

In h hour temperature = -4h degrees F

We have to find the the temperature be below 32 degrees F.

Total Temperature be below 32 degrees F means:

`50-4h < 32` where, h represents the number of hours.

Therefore, the the temperature below 32 degrees F will be
`50-4h < 32`