Answer:
There were 1,500 polar bears in 2001.
Step-by-step explanation:
We can write a proportion to solve this problem.
[tex]\frac{900}{x}[/tex] = [tex]\frac{60}{100}[/tex]
90000 = 60x --- cross multiply the fractions
x = 1500 --- divide both sides by 60
There were 1,500 polar bears in 2001.