Question

A whale is swimming at an altitude of −42
meters and then ascends 20 meters to the surface. What is the altitude at the surface of the water?

Answer 1

To find the altitude at the surface of the water, we need to add the initial altitude of the whale to the distance it ascends.

Initial altitude = -42 meters
Distance ascended = 20 meters

-42 meters + 20 meters = -22 meters

Therefore, the altitude at the surface of the water is -22 meters.