Question

Any student that received an A on a test received a sticker. 90% of the class got a sticker. If 27 students got a sticker, how many students are in the class?

Answer 1

To find the total number of students in the class, we can use the information that 90% of the class got a sticker. Setting up a proportion, we find that there are 30 students in the class.

Step-by-step explanation:

To find the total number of students in the class, we can use the information that 90% of the class got a sticker. We know that 90% is equal to 27 students, so we can set up a proportion:

90/100 = 27/x

Cross-multiplying, we get:

90x = 2700

Dividing both sides by 90, we find that x = 30.

Therefore, there are 30 students in the class.