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31 January, 08:00

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?

+5
Answers (1)
  1. 31 January, 11:03
    0
    360 feet

    Step-by-step explanation:

    you can multiply 18 by 20 or set up a proportion
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