Question

The fly population on an island is declining at a rate of 1.7% per year. The population was 4600 in the year 2016.

Which answer is the best prediction of the population in the year 2023?

Answer 1

I believe your answer would be 4080. Hope this helps. Couldn't actually do the equation correctly so I did a quick estimate.

Answer 2

4080

Explanation:

Declining by 1.7 % ( = 0.017) each year mean that each year the population is 0.983 8 previous.

So after 7 years ( that is in 2023) the population will be about

4600 * 0.983^7

= 4080