Question

a cat ’s heart beats approximately 45 times in 15 seconds. At this rate how many times does the cat ’ s heart beat per second ?

Answer 1

Explanation:

45beats/15sec = 3beats/sec

Answer 2

3 heartbeats

Explanation:

The cat's heartbeats are 45 per 15 seconds.
To find out how many heartbeats it does per second (instead of 15), we should divide this amount by 15.

`(45)/(15) \to 3`