Question

How many times will it flap its wmg
The average human heart beats at 72 times per minute. How many times de
15 seconds? How many in an hour? How many in a day?​

Answer 1

Step-by-step explanation:

Answer:

In 15 seconds it beats 18 times.

In 1 hour it beats 4320 times.

In 24 hours it beats 103680 times.

Step-by-step explanation:

1 min = 60 sec

1 hr = 3600 sec

24 hr = 24×3600 sec

No: of times the heart beats in 60 sec = 72

No: of times it beats in 1 sec = 72/60=1.2 times

No: of times it beats in 15 sec = 1.2×15=18 times

No: of times it beats in 1 hr = 1.2×3600=4320 times

No: of times it beats in 24 hr = 1.2.3600.24= 103680 times.

Answer 2

Answer:

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Step-by-step explanation:

In 1 min(60 secs)=72 times

in 15 sec=(72/60)*15

             =18 times

in 1 hour(60 mins)=72*60

                          =4320 times

in 1 day(1440 mins)=1440*72

                             =103680 times