Situation: A 10 gram sample of a substance that's used
to detect explosives has a k-value of 0.1356.
Find the substance's half-life, in days.
Round your answer to the nearest tenth.
Enter the correct answer.
DONE
00
N = Noe-kt
No = initial mass (at time t = 0)
N = mass at timet
k = a positive constant that depends on the
substance itself and on the units used to
measure time
t = time, in days