Answered: 1. If 25% of a radioactive substance…

1. If 25% of a radioactive substance disappeared in 10 years, how long did it take for 60% of the substance to disappear? How many % disappeared in 5 years?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter7: Exponents And Exponential Functions

Section7.9: Geometric Sequences As Exponential Functions

Problem 49PFA

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1. If 25% of a radioactive substance disappeared in 10 years, how long did it take for 60% of the substance to disappear? How many % disappeared in 5 years?

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