Question

20% of the middle school students decided not to go skiing. How many middle school students are there if 40 stayed in the lodge?

Write a proportion for the situation.

Solve the problem. Show your work.

Answer 1

There are 200 middle school students

Explanation:

The equation for this question can be: 40 is 20% of what. This can be simplified to 40 = 0.2x and then to get x by itself you divide 40 by 0.2 which is 200.

Answer 2

Explanation:

s(20/100)=40

20s=4000

s=200

So there are a total of 200 students.