If 5% is gone, that leaves 95% of the previous population.
So, #3.
Which of the following equations best represents the function for the situation "an initial population (P) of 1,400 people decreasing by 5% per year (x)"?
p=1,400-5x
p=1,400(0.05)^x
p=1,400(0.95)^x
p=1,400/5x
1 answer