SOLUTION: 2.Which of the following is closest to the number of heartbeats you might have in a year? Justify your response. i. _____ 400 million ii._____ 4 billion iii._____ 40 million

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: 2.Which of the following is closest to the number of heartbeats you might have in a year? Justify your response. i. _____ 400 million ii._____ 4 billion iii._____ 40 million       Log On

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Question 1009229: 2.Which of the following is closest to the number of heartbeats you might have in a year?
Justify your response.
i. _____ 400 million
ii._____ 4 billion
iii._____ 40 million
iv._____ 4 million
v._____ 40 billion
Answer by MathLover1(20849) About Me  (Show Source):
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Your heartbeat, naturally, is by no means constant. The rate can vary from minute to minute, depending on stress and body temperature.
A less active person might have a heart rate between 60 and 100. That’s because the heart muscle has to work harder to maintain bodily functions, making it higher.
A rate of 72 to 80 beats per minute is generally considered normal for a healthy human being at rest.
Since the solar year consists of 525948 minutes and 48 seconds, a quick calculation at the rate of 80 beats per minute gives us a ballpark figure of 42075904 beats per year, give or take a couple millions.
so, answer is: iii. 40 million
ps:
A reasonable estimate for the number of heartbeats in a lifetime is about 3 billion.