Question

Someone please help i need an explanation and answer fast
A submarine was stationed 700 feet below sea level. It ascends 250 feet every hour. If the submarine continues to ascend at the same rate, when will the submarine be at the surface?

15 points!​

Answer 1

It will take about 167.87 minutes or 2.8 hours.
I divided 250 by 60 to find out that it ascends 4.17 ft every minute.
Then I divided 700 by 4.17 to find out that it will take 167.87 minutes.