A hungry Emperor penguin was swimming 21 feet below sea level. It swam up 9 feet to eat a fish. What

Discussion in 'Calculator Requests' started by math_celebrity, Aug 16, 2020.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    A hungry Emperor penguin was swimming 21 feet below sea level. It swam up 9 feet to eat a fish. What is the position of the penguin now relative to sea level?

    21 feet below is written as -21
    9 feet up is written as +9
    So we have -21 + 9 = -12 or 12 feet below sea level
     
    math_celebrity, Aug 16, 2020
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