The half life of a decaying substance is the amount of time it takes for the substance to reduced to half of its original amount. If a substance has a half life of 750 years, and there are 25 mg present now, how long will it take for the substance to be reduced to 10 mg? It will take y years. (Round to nearest tenth.)
The half life of a decaying substance is the amount of time it takes for the substance to reduced to half of its original amount. If a substance has a half life of 750 years, and there are 25 mg present now, how long will it take for the substance to be reduced to 10 mg? It will take y years. (Round to nearest tenth.)
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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Transcribed Image Text:The half life of a decaying substance is the amount of time it takes for the substance to reduced to half of its original amount. If a substance has a half life of 750 years,
and there are 25 mg present now, how long will it take for the substance to be reduced to 10 mg?
It will take years.
(Round to nearest tenth.)
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