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5 August, 17:40

9. A submarine dove 400 feet. It then

rose at a rate of 20 feet per minute.

What was the depth of the submarine

after 18 minutes?

d

is

+1
Answers (1)
  1. 5 August, 19:42
    0
    40 feet

    20•18=360

    400-360=40 feet
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