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A submarine started 30 feet below the surface of the water. It is now 10 feet below the surface. What integer represents the change in depth?

User Supertrue
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Answer:

-20 feet

Explanation:

change in depth = number of feet below the surface + number of depth on the surface

Because the submarine is below surface, a value of -30 would be given

-30 + 10 = -20 feet

User KingRichard
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