Question

Starting at sea level, a submarine descended at a constant rate to a depth of −56 mile relative to sea level in 4 minutes.

What was the submarine's depth relative to sea level after the first minute?

Enter your answer in the box as a fraction in simplest form.

Answer 1

-56mi in 4 minutes is (56mi/4) in 1 minutes = 14mi/minute.

Therefore, the submarine was 14 miles below sea level after 1 minute.

Answer 2

The submarine's depth relative to sea level after the first minute is -14 miles.

Explanation:

Consider the provided information.

Starting at sea level, a submarine descended at a constant rate to a depth of −56 mile relative to sea level in 4 minutes.

This can be written as:

`-56\ miles=4\ minutes`

To find the submarine's depth relative to sea level after the first minute, divide both the sides by 4.

`(-56)/(4)\ miles=(4)/(4)\ minutes`

`-14\ miles=1\ minutes`

Hence, the submarine's depth relative to sea level after the first minute is -14 miles.