Asubmarine dives 300 feet every 2 minutes, and 6,750 feet every 45 minutes.
find the constant rate at which the submarine dives. give your answer in feet per minute and in feet per hour

150 feet per minute and 9000 feet per hour

What you need to do to find the constant rate is first you take 300 divided by 2 to get how many feet a submarine dives per minute. 300/2 equals 150. The submarine dives 150 feet per minute. Since you know how many feet a submarine dives per minute, you can do 150 time 60, since there are 60 minutes in an hour. 60 times 150 equals 9,000. So a submarine dives 9,000 feet per hour and 150 feet per minute.