Question

Last year, Robinson Elementary School's population was 990 students. This year, after rezoning, the population is 693 students. What is the percent of decrease in the student population?

a) 30%
b) 40%
c) 60%
d) 70%

Answer 1

The percent of decrease in student population at Robinson Elementary School is found by dividing the decrease in population by the original population and then multiplying by 100, resulting in a 30% decrease.

Step-by-step explanation:

To calculate the percent of decrease in the student population, you first find the difference in population between the two years and then divide it by the original population, finally multiplying by 100 to get the percentage.

Difference in student population = Original population - New population = 990 - 693 = 297 students

Now, we calculate the percentage:

Percent decrease = (Difference / Original population) x 100 = (297 / 990) x 100 = 0.30 x 100 = 30%

Therefore, the correct answer is a) 30%.