A scuba diver dives down 15 feet into the ocean. He then swims 8 feet back up towards the surface. What is the position of the scuba diver relative to the surface?

7 feet below the surface

Step-by-step explanation:

Lets consider down direction=+ve(positive) and up direction= -ve (negative).

 A scuba diver dives down 15 feet into the ocean, therefore, position of scuba diver would be +15 feet. (as we have considered down direction as positive)

He then swims 8 feet back up towards the surface,now,  position of scuba diver would be -8 feet (as we have considered up direction as negative)

 So, overall position = 15 - 8 = 7 feet.

 Therefore, the position of the scuba diver relative to the surface = 7 feet below the surface.

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step-by-step explanation:

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