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OpenStudy (anonymous):
A human heart beats about 70 times per minute. If an average human being lives to the age of 80 how many times does the average heart beat in a lifetime? I come up with 8,064,000. Is that right?
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OpenStudy (campbell_st):
wow... that looks way under 70 /min 70 x 60 = beats per hour 70 x 60 x 24 = beats per day 70 x 60 x 24 x365 = beats per year I'll let you figure beats in 80 years
OpenStudy (dan815):
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