There are 1,000 fish in a lake. Each year the population declines by 15%, but afterward, the lake is restocked with 500 additional fish. Write a recursive rule to find the number of fish in the lake for any year.

Question

Mathematics

Linda Ryan

17 January, 17:15

There are 1,000 fish in a lake. Each year the population declines by 15%, but afterward, the lake is restocked with 500 additional fish. Write a recursive rule to find the number of fish in the lake for any year.

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Brandon Ferguson · Answer 1

We begin with 1,000 fish in a lake.

Each year the population declines to 15%

Then they put back 500 fish in the lake.

The equation: (1000 *.85) + 500.