Question

Jim and Carla are scuba diving. Jim started out 8 feet below the surface. He descended 18 feet, rose 5 feet,and descended 9 more feet. Then he rested. Carla started out at the surface. She descended 16 feet, rose 5feet, and descended another 18 feet. Then she rested. Which person rested at a greater depth? Completethe explanation.

Answer 1

To solve this question, we need to use integers to express different altitudes. We can sketch each situation as follows:

To find the depth at which each person rested, we need to algebraically sum all these altitudes.

Jim:

-8 -18 + 5 - 9 = -30. He rested at 30 feet below the surface.

Carla:

-16 + 5 - 18 = -29. She rested at 29 feet below the surface.

Therefore, Jim rested at a greater depth (30 feet below the surface).