Question

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.

Answer 1

0.15*1000=150+500=650

Answer 2

hope i am right

Answer 3

i think it wants a recursion

Answer 4

are telling me that i am wrong?

Answer 5

you telling*

Answer 6

\[A_1=1000, A_n=.85\times A_{n-1}+500\]might work
to decrease a number by \(15\%\) you multiply it by \(100\%-15\%=85\%=.85\)
then add \(500\)