The expression -360 + 15z represents a submarine that began at a depth of 360 feet below sea level and ascended at a rate of 15
feet per minute. What is the depth of the submarine after 5 minutes?
1 answer:
Answer:
285 ft below sea level
Step-by-step explanation:
Substitute 5 for z.
-360 + 15(5)
-360 + 75 = -285
Therefore, the submarine is 285 feet below sea level after 5 minutes.
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