Consider a human heart rate of 80 beats per minute. If someone's heart beats at that rate over a 70-yr lifetime, how many times would it beat? A) 1.78 × 10⁷ B) 2.20 × 10⁹ C) 3.26 × 10¹⁰ D) 2.95 × 10⁹ E) 7.44 × 10⁵

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Quizplus · Accepted Answer

The heart beats 80 times per minute, which is 80 * 60 = 4800 times per hour. In a 70-year lifetime, the heart would beat 4800 * 24 * 365 * 70 = 2.95 * 10^9 times.

Consider a Human Heart Rate of 80 Beats Per Minute