Question

2. A submarine dives 60 meters in 5 minutes. Find how quickly it dives in feet per second (recall 1 meter = 3.28084 feet). How many feet can it dive in 6 minutes and 34 seconds?

Answer 1

258.54 feet

Explanation:

Step 1

We convert 60 meters to feet

1 meter = 3.28084 feet

60 meters = x

Cross Multiply

x = 60 × 3.28084 feet

x = 196.8504 feet

60 meters = 196.8504 feet

Step 2

How many feet can it dive in 6 minutes and 34 seconds

We convert 34 seconds to minutes

60 seconds = 1 minute

34 seconds = x

Cross Multiply

60 × x = 34 × 1

x = 34/60

x = 0.567 minutes

So, 6 minutes and 34 seconds = 6 + 0.567 minutes = 6.567 minutes.

60 meters in 5 minutes.

60 meters = 196.8504 feet

Hence:

5 minutes = 196.8504 feet

6.567 minutes = x

Cross Multiply

5x = 6.567 × 196.8504 feet

5x = 1292.7165768 feet

x = 1292.7165768/5

x = 258.54331536 feet

Approximately = 258.54 feet

Therefore, the submarine can dive 258.54 feet in 6 minutes 34 seconds