Answered: A radioactive substance Sodium-24 has a…

A radioactive substance Sodium-24 has a half-life of 15 hr. Find how long it takes for 80% of the substance to be dissipated. 4.8 hours 8.4 hours 24.4 hours 34.8 hours

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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Question

Solving situational problems involving exponential growth and decay

A radioactive substance Sodium-24 has a half-life of 15 hr. Find
how long it takes for 80% of the substance to be dissipated.
4.8 hours
8.4 hours
24.4 hours
34.8 hours

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