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LenKa [72]
3 years ago
15

A radioactive substance decays exponentially. A scientist begins with 130 milligrams of a radioactive substance. After 24 hours,

65 mg of the substance remains. How many milligrams will remain after 45 hours?
Mathematics
1 answer:
Sati [7]3 years ago
4 0
N(t)=N∗.5t/h where n(t) is amount of substance left, N = initial amount, t = current time, and h = half-life time.h = 24 hours t= 45 hours, N = 130mg
therefore, N(t)=130∗.545/24=35.44mg
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