Answer:
Hi my name is Misbah! How do you do?
Step-by-step explanation:
P=2*(l+w)
p=2l+2w
2w=p - 2l
w= (p-2l)/2
Note: a radioactive decay constant is always negative.
time = [natural log(ending amount / beginning amount)] / k
time = ln (20 / 24) / -.00011
time = ln (5/6) / -.00011
time = -.018232155683 / -.00011
time =
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165.7468698455
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time =
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165.75 years
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