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3 years ago

The expression - 380 + 15y represents a submarine that began at a depth of 380 feet below sea

Mathematics

1 answer:

Mice21 [21]3 years ago

8 0

Answer: The submarine was 245 feet below sea level after 9 minutes.

Step-by-step explanation: Since y represents minutes, replace it with 9...

-380 + 15(9)

-380 + 135

-245

Since it’s negative, the submarine is still below sea level.

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