Question

A whale was diving at a rate of 4 meters per second. How long will it take for the whale to get from the surface of the ocean to an elevation of -16 meters at that rate?

Answer 1

4 seconds

The elevation of the ocean is 0, so if we start at 0 and we want to get to -16, we are going down 16. If the whale travels at 4 meters per second, and we want to get to 16, just divide 16 by 4 to see how many times 4 goes into 16. Which is 4 times, so it takes 4 seconds for the whale to reach -16 meters