Question

In 2010 Elmbrook Middle School had 100 students in the eighth grade. In 2011 the number of eighth

graders decreased by 10%. The 2012 eighth grade Class increased in size by 10% from 2011. How many
eighth grade students were enrolled at Elmbrook Middle School in 2011

Answer 1

hello

2010 = 100 students

2011 = 100 x 0.9 = 90

2012 = 90 x 1.1 = 99

Explanation:

Answer 2

90 students

Explanation:

So, if you have 100 students to start and it decreases by 10% then take the 100 and multiply it by .10. You should get 10. Then, subtract 10 from 100 and you end up with 90.