Question

Jim and Carla are scuba diving. Jim started out 8 feet below the surface. He descended 18 feet, rose 7 feet,and descended 12 more feet. Then he rested. Carla started out at the surface. She descended 17 feet, rose7 feet, and descended another 18 feet. Then she rested. Which person rested at a greater depth?Complete the explanation.feet below the surface.Jim rested at feet below the surface while Carla rested atTherefore (select) rested at a greater depth.

Answer 1

Jim.

Started 8 feet below the surface.

Use negative 8 (-8) to represent Jim's start, since he started below the surface.

Then add when he roses and subtract when he descends:

-8+(-18)+7+(-12)

-8-18+7-12 = -31

Carla

0-17+7-18 = -28

Jim rested at a greater depth

Jim rested at 31 feet below the surface while Carla rested at 28

Therefore Jim rested at a greater depth.