The mass that would remain after 50 years is 48. 79 kilograms
<h3>How to determine the amount </h3>
It is important to note that half - life is the time it takes for amount of a substance to reduce to half of its initial value.
Given the equation
m(t)=120e−0.018t
Where
m(t) is the amount = unknown
t = time = 50 years
Substitute the value into the equation
Find the exponential value
m(t) = 48. 79 kilograms in 2 decimal places
Thus, the mass that would remain after 50 years is 48. 79 kilograms
Learn more about half-life here:
brainly.com/question/15575933
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