help please Twenty percent of a radioactive substance decays in ten years. By what percent does the substance decay each year?By 0.2207% per year.Submit answer

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Answered: Twenty percent of a radioactive…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter5: Exponential And Logarithmic Functions

Section: Chapter Questions

Problem 28T: The half-life of radioactive actinium ( 227AC ) is 21.77 years. What percent of a present amount of...

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The half-life of radioactive actinium ( 227AC ) is 21.77 years. What percent of a present amount of radioactive actinium will remain after 19 years?
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Twenty percent of a radioactive substance decays in ten years. By what percent does the substance decay each year? By 0.2207 % per year. Submit answer