A submarine hovers at 240 meters below sea level. If it descends 160 meters and then ascends 390 met

Discussion in 'Calculator Requests' started by math_celebrity, Nov 17, 2021.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    A submarine hovers at 240 meters below sea level. If it descends 160 meters and then ascends 390 meters, what is its new position?

    240 meters below sea level means a negative number, so we start with:
    -240

    Descending 160 meters means our depth decreases, so we subtract:
    -240 - 160 = -400

    Ascends means our depth increases, so we add:
    -400 + 390 = -10 or 10 feet below sea level

     
    Last edited: Dec 16, 2023

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