in an over-fished area, the catch of a certain type of fish is decreasing at an average rate of 8% per year. If this decline per
sists, how long will it take for the catch to reach half of the amount before the decline???
1 answer:
<span>n = n0(1 - 0.08)^t
= n0(0.92)^t
Putting n = n0 / 2:
1 / 2 = 0.92^t
t = log(1 / 2) / log(0.92)
= 8.31 yr.</span><span>
</span>
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