Question

16. A deep-sea exploring ship is pulling up a diver at the rate of 25 feet per minute. The diver is 200 feet below sea level. How deep was the diver 10 minutes ago?

Answer 1

Answer:

Since tge diver is being pulled up, measuring his movement for the past

10

minutes requires that we use

−

25

for the movement over those

10

minutes. So, his depth

10

minutes ago is given by the expression

−

200

−

25

(

10

)

−

200

−

250

−

450

So,

10

minutes ago, the diver was

450

feet below sea level.