A submarine submerged at a depth of -35.25 meters dives an additional 8.5 meters. What is the new depth of the submarine?

-35.25 - 8.5 = -43.75

To find the new depth of the submarine, we need to add the additional depth the submarine dives to its current depth.

The current depth of the submarine is -35.25 meters. By adding the additional depth of 8.5 meters, we get:

-35.25 meters + 8.5 meters = -26.75 meters

Therefore, the new depth of the submarine is -26.75 meters.