Question

2. The human heart beats an average of 4320 times an hour. What's the
unit rate per day?

Answer 1

72 is the unit rate.

Explanation:

If you take 72 and multiply it by 60 (which is how many minutes are in an hour), then you will get your answer as 4,320.

Also, the average heartbeats you do per day is 103,680.

Answer 2

• 103680 times a day

Explanation:

The rate per day is the rate per hour times the number of hours:

• Heart beats an hour = 4320 times
• Heart beats a day = 4320 times × 24 hours = 103680 times