Answer:
Step-by-step explanation:
Remark
Notice you are working with minus signs. You final answer must be "smaller" than what you started out with. In other words, your final answer must be more negative.
Givens
Beginning level below sea level = -1260 feet
rate of descent = 5 feet per minute
Number of minutes = 12 minutes
Equation
Final level = initial level - rate * time Substitute givens into equation.
Solution
Final Level = - 1260 - 5*12
Final Level = - 1260 - 60
Final level = - 1329
Answer: - 1320 feet
