Question

By the time you are 70 years old, you heart will have contracted number of beats per year x 70 = number of beats in 70 years______
x 70
_________beats in 70 years.​

Answer 1

Answer:

2 943 360 000

Explanation:

If you use an average of 80 beats per minute, your heart beats about 4,800 times per hour. That's a whopping 115,200 times per day. Over the course of a year, your heart would beat about 42,048,000 times!

If the heart beats 42 048 000 times in a year, in 70 years the heart would have beaten

42 048 000 x 70 = 2 943 360 000 times