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

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

ncG1vNJzZmivp6x7rq3ToZqepJWXv6rA2GeaqKVfmLyuudSnoK2xX6m1s7HAnapomV2owqO5wKugp51dnby3sdGsZJqsXWeBcXnMnqueqqNir6a4zrBkrJ2RYrmmwsSlZKKeXZ7BbrDErJqeppSoenKCj2aknqyVp8Burc2dZK2glaN6or%2FCnqWdq11ohnF5zJ6rZ2xmaIFw