Question

A submarine is at a depth of 250 meters below sea level. It rises 75 meters and then dives 20 meters. Use an integer to describe the new depth of the submarine.

Answer 1

The depth of the submarine would be -195 meters or 195 meters below sea level.

Answer 2

Answer: The new depth of submarines would be -195 meters, i.e. 195 meters below the sea level.

Explanation:

Since we have given that

Depth of submarine = 250 meters below sea level. = (-) 250 meters

Rises by = 75 meters = (+) 75 meters

Dives by = 20 meters = (-) 20 meters

So, the new depth would be

`-250+75-20\\\\=-195\ meters`

Hence, the new depth of submarines would be -195 meters, i.e. 195 meters below the sea level.