Situation: Find the substance's half-life, in days.
Round your answer to the nearest tenth.
A 31 gram sample of a substance that's a
by-product of fireworks has a k-value of
0.1173
Enter the correct answer.
-kt
N = Noe
DONE
No = initial mass (at time t = 0)
N = mass at time t
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days