Question

A person's resting heart rate is typically between 60 and 100 beats per minute. Noah looks at his watch, and counts 8 heartbeats in 10 seconds.

Is his heart rate typical? Explain how you know.

Answer 1

Multiply 8/10 by 6 and you get:

48/60

Noah’s heartbeat is 48 beats per minute. Well, then, Noah must be Usain Bolt...

Noah’s heartbeat is not typical.

Answer 2

Noah's heart rate is not typical, it's lower, 48 beats per minute.

Explanation:

Givens:

• Heart rate is between 60 and 100 beats per minute.
• Noah counts 8 heartbeats in 10 seconds.

To know if Noah has a typical hear rate, we just have to transform his heartbeats in second to minutes.

`(8beats)/(10sec)(60sec)/(1min)=(480beats)/(10min)=48(beats)/(min)`

So, as you can observe, Noah's heart rate is 48 beats per minute. If typical heart beat is between 60 and 100 beats per minute, then Noah doesn't have a typical heart beat. His heartbeat is lower than it must be, actually, Noah has healthy issues.