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30-06-2017
Mathematics

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A small submarine started its dive at sea level and descended 30 feet per minute. Which integer represents the submarine's depth after seven minutes?

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patzer100 patzer100

30-06-2017

So since the rate at which the small submarine is diving is 30 feet per minute, after 7 minutes the submarine would have been at a depth of 210 feet.

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tyneshia234 tyneshia234

30-06-2017

its -210 because if you multiply 7 and 30 you get 210 and it says descended, which means to drop, so your decreasing so it would be -210

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