Question

the population of endangered animal spieces is decreasing at an annual rate of 8%. there are 420 animals currently in the population. estimate the number of animals in this population in 9 years.

Answer 1

Explanation:

1) find 8% of 420 = 33.6 ( assume you round this up as you have to have a whole number ! )

2) minus 34 ( rounded ) from 420 = 386

3) find 8% of 386 = 30.88 ( 31 )

4) 386 - 31 = 355

5) find 8% of 355 = 28.4 ( 28 )

6) 355 - 28 = 327

7) you get where im going - find 8% of the number of animals and minus it from the total number - keep doing this until you have done it 9 times

8) you should get the answer of 183