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The expression −290+18y represents a submarine that began at a depth of 290 feet below sea level and ascended at a rate of 18 feet per minute. What was the depth of the submarine after 6 ​minutes?
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The expression −290+18y represents a submarine that began at a depth of 290 feet below sea level and ascended at a rate of 18 feet per minute. What was the depth of the submarine after 6 ​minutes?

User JamesD
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20 votes
20 votes

Answer: would be -120 + 78, or -42 feet.

Explanation:

User Erszcz
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