Question

b. When she is done exploring the reef, she ascends at a rate of 5 feet per minute. Once she reaches
a height of -30 feet, she must rest for 15 minutes to allow her body to adapt to the changing water
pressure. She then continues to the surface at the same rate. How long will it take the diver to reach
the surface?

Answer 1

Answer:

6 minutes.

Step-by-step explanation:

She ascends at a rate of 5 feet per minute from the reef.

Once she reaches  a height of -30 feet, she must rest for 15 minutes and she then continues to the surface at the same rate.

So, she dives from - 30 feet height to water surface i.e. 0 feet height with a rate of 5 feet per minute.

Therefore, she will take $\frac{30}{5} = 6$ minutes to reach the surface.  

(Answer)

Answer 2

Answer:

6 min

Step-by-step explanation: