Social Studies College

A seal has to breathe even if it is asleep. Martin observed a seal for one hour.At the start of his observation the seal dove to the bottom of the sea and started to sleep. In 8 minutes it slowly floated to the surface and took a breath. In 3 minutes it was back at the bottom of the sea again and the whole process started over in a very regular way. After one hour the seal was:

Answers

Answer 1

Answer:

On its way up

Explanation:

Let t = 0 be time when seal is at the bottom

8 minutes later it is at the surface

3 minutes it is at bottom starting this process all over.

8+3 = 11 minutes

5 cycles = 11x5 = 55

This seal takes 8 minutes to come back to the surface to breathe

60-55 = 5 minutes.

1 hr = 60 minutes

Seal will be on its way up

Answer 2

After one hour completion, the seal was: Option B: On its way up.

How does minutes make an hour?

One hour is made up of 60 minutes.

Thus, if 60 minutes are collected, they are equal to being one hour.

For this case, we know that:

Seal takes 8 minutes to come up.

Then 3 minutes to go down.

Total minutes for 1 cycle of up and down is 8 + 3 = 11 minutes.

After one hour 60 minutes passed.

11 + 11 + 11 +11 + 11 (5 times, 5 cycles of up and down) = 55

Then in next 8 minutes will make seal go up. But after 5 minutes, there will be one hour completed as 55 + 5 = 60 minutes = 1 hour.

That means, after one hour, seal would be on its way up.

We could've done it easily by:

60 รท 11 has 5 as quotient and 5 as remainder. That 5 as quotient shows 5 cycles of up and down are completed and yet 5 minutes are remaining for 1 hour (60 minutes) completion.

Thus, after one hour completion, the seal was: Option B: On its way up.

Learn more about division here:

https://brainly.com/question/26411682

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