Question

Jim and Carla are scuba diving. Jim started out 12 feet below the surface. He descended 20 feet, rose 3 feet, and descended 7 more feet. Then he rested. Carla started out at the surface. She descended 16 feet, rose 3 feet, and descended another 20 feet. Then she rested. Which person rested at a greater depth? Complete the explanation.

Jim rested at (select) feet below the surface while Carla rested at feet below the surface.

Therefore (select) rested at a greater depth.
A. Jim - 12 feet; Carla - 20 feet
B. Jim - 2 feet; Carla - 20 feet
C. Jim - 2 feet; Carla - 0 feet
D. Jim - 3 feet; Carla - 23 feet

Answer 1

Jim rested at a depth of -12 feet below the surface while Carla rested at a depth of -33 feet below the surface. Therefore, Jim rested at a greater depth.

Step-by-step explanation:

To determine who rested at a greater depth, we need to calculate the depth at which Jim and Carla rested. Let's start with Jim. Jim started out 12 feet below the surface. He descended 20 feet, rose 3 feet, and descended 7 more feet. So, Jim rested at a depth of 12 - 20 + 3 - 7 = -12 feet below the surface.

Now, let's calculate the depth at which Carla rested. Carla started out at the surface. She descended 16 feet, rose 3 feet, and descended another 20 feet. So, Carla rested at a depth of 0 - 16 + 3 - 20 = -33 feet below the surface.

Based on these calculations, Jim rested at -12 feet below the surface, while Carla rested at -33 feet below the surface. Therefore, Jim rested at a greater depth.