8
QuizMultiple Choice

Modeling with Exponential and Logarithmic Equations

Question 8 • [INMT3] Integrated Math 3 Sem 1 (26-27)

The amount of a sample remaining after t days is given by the equation , where A is the initial amount of the sample and h is the half-life, in days, of the substance. A sample contains 60% of its original amount of Fermium-257. The half-life of Fermium-257 is about 100 days. About how old is the sample?

Question illustration
Answer
A
52 days
B
60 days
C
74 days
D
136 days
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The amount of a sample remaining after t days is…