On the average your heart beats about 72 times per min. At this rate, about how many times will it be 30 days in a year in your lifetime if you live to be 72?
Please reread your question. It doesn't make any sense (be 30 days in a year??).
Clarify and repost and we'll help you find the answer to this problem.
I think the child has left out commas. If it beats 72/minute, then in 30 days it will be 72 x 60 (for one hour) x 24 ( for one day) x 30 (days) then that answer by 12 (months) then that answer x 72.
To calculate the number of times your heart beats in a year, we'll start by finding the number of minutes in a year and then multiply it by the average heart rate.
First, we can calculate the number of minutes in a year:
Number of minutes in an hour = 60 minutes
Number of hours in a day = 24 hours
Number of days in a year = 365 days (assuming a non-leap year)
So, the number of minutes in a year is:
60 minutes/hour * 24 hours/day * 365 days = 525,600 minutes
Next, we can use the average heart rate of 72 beats per minute to find the number of heartbeats in a year:
Number of heartbeats in a year = average heart rate * number of minutes in a year
Number of heartbeats in a year = 72 beats/minute * 525,600 minutes = 37,843,200 beats/year
Finally, we can calculate the number of times your heart will beat in your lifetime of 72 years:
Number of heartbeats in a lifetime = number of heartbeats in a year * number of years lived
Number of heartbeats in a lifetime = 37,843,200 beats/year * 72 years = 2,725,785,600 beats in a lifetime (approximately)
Therefore, if you live to be 72 years old, your heart will beat approximately 2,725,785,600 times.