Question

A species' population dropped from 8000 in the year 2000 to 4400 in the year 2011. Find the percent decrease in its population. a) 45% b) 50% c) 55% d) 60%

Answer 1

The percent decrease in the population of the species is 45%. So, the correct answer is 45%.

Option (a) is true.

Explanation:

The concept used to determine the percent decrease in the population is the formula for calculating percent decrease.

This formula is commonly used to measure the change in a quantity over time.

To find the percent decrease in the population of the species, we can use the formula:

Percent decrease = ((Initial value - Final value) / Initial value) * 100

Given that the population dropped from 8000 in the year 2000 to 4400 in the year 2011, we can substitute these values into the formula:

Percent decrease = ((8000 - 4400) / 8000) * 100

= (3600 / 8000) * 100

= 0.45 * 100

= 45%

Therefore,

Option (a) is true.