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Vika [28.1K]
3 years ago
6

Where q represents the quanity

Mathematics
2 answers:
guapka [62]3 years ago
7 0
We have the following equation:
 Q = Qo * exp (-k * t)
 Substituting values we have:
 20 = 24 * exp (-0.00011 * t)
 We clear the value of t:
 exp (-0.00011 * t) = 20/24
 We apply Neperian logarithm to both sides:
  ln (exp (-0.00011 * t)) = ln (20/24)
 -0.00011 * t = ln (20/24)
 t = ln (20/24) / (- 0.00011)
 t = 1660 years
 Answer:
 
t = 1660 years
motikmotik3 years ago
7 0
Hello,
Please, see the attached file.
Thanks.

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