Estimate the number of times an average person's heart beats in a lifetime.Assume the average heart rate is 69 beats/min and a life span of 75 years. A)3 × 10⁹ beats B)3 × 10⁸ beats C)3 × 10¹⁰ beats D)3 × 10⁷ beats

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The average heart rate is 69 beats/min. In a year, there are 525,600 minutes (60 minutes/hour * 24 hours/day * 365 days/year). Over 75 years, the heart beats approximately 69 * 525,600 * 75 = 2,727,720,000, which is approximately 3 × 10^9 beats.

Estimate the Number of Times an Average Person's Heart Beats