Question

Another one while in class​

Answer 1

9514 1404 393

Answer:

16,700

Explanation:

5000 is 30% of the original number, so ...

5000 = 0.30 × original

5000/0.30 = original ≈ 16,667

The original number was about 16,700.

Answer 2

16667 gorillas

Explanation:

Let x = number of gorillas 10 years ago

The number fell by 70%, which means there are 100 -70 = 30 % left

x*.30 = 5000

Divide each side by .3

x = 5000/.3

x =16666.666666

Rounding to the nearest gorilla

16667 gorillas