Question

15. Paul is scuba diving and is 3.5 feet below

sea level. He is descending at a rate of 0.5
feet per minute. If Paul is now at 12 feet
below sea level, how many minutes has he
been diving?

Answer 1

24min.

Explanation:

he descends 0.5 feet per min. Its just like counting by 2's. I hope this helped!!

Answer 2

17 minutes

Explanation:

This equation can be expressed as .5m+3.5=12 where m = minutes. I put this in a graphing calculator but to solve this you can

12-3.5=8.5

8.5/.5 = 17