Explanation Given: Radioactive substance decays by 17 % each year. Approach: Yearly decay factor is given by 1 − p , where, p is the percentage decay of radioactive substance expressed in decimals. Now, Monthly decay factor = ( Yearly decay factor ) 1 12 . For exponential function, decay factor is a = 1 − r , where r is the percentage decay rate. Calculation: Yearly decay factor is given by, 1 − 17 100 = 83 100 = 0.83

6th Edition

ISBN: 9780357422496

Author: Crauder

Publisher: CENGAGE L

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Chapter 4.2, Problem 28SBE

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The percentage decay of radioactive substance each month.

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Chapter 4.2, Problem 27SBE

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The percentage decay of radioactive substance each month.

Solution Summary: The author explains that the percentage decay of radioactive substance each month is 1.54%.

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Chapter 4 Solutions

To find:

The percentage decay of radioactive substance each month.