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16 February, 18:51

A dolphin is swimming 18 feet below the surface of the ocean. There is a coast guard helicopter 75.5 feet above the surface of the water that is directly above the dolphin. What is the distance between the dolphin and the helicopter?

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  1. 16 February, 19:05
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    Answer: Distance between dolphin and helicopter = 93.5 feet

    Explanation:

    Distance at which dolphin swimming below the ocean = (-) 18 feet

    (it is represented as the negative number as it denotes the distance below the ocean)

    Distance at which helicopter is above the ocean = (+) 75.5 feet

    (it is represented as the positive number as it denotes the distance above the ocean)

    Distance between dolphin and helicopter = 75.5 - (-18) feet

    = 75.5 + 18 feet

    = 93.5 feet
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