If you have a music CD collection of about 150 discs,estimate the order of magnitude of the number of heartbeats you would have if you listened all the way through your collection. A)10⁶ B)10⁸ C)10¹⁰ D)10⁴ E)10³

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Quizplus · Accepted Answer

The average CD has about 70 minutes of music. If you listen to all 150 CDs, that's about 10,500 minutes of music. If your heart beats about 70 times per minute, that's about 735,000 heartbeats. The order of magnitude of this number is 10^6.

If You Have a Music CD Collection of About 150