Question

four fifths of the senior class went to prom. if 324 seniors went to prom, how many are there in the class?

Answer 1

4/5=80/100=80%
80%. 324
100%. X
X=100•324/80
X=32,400/80
X=405
405 seniors are in the class

Answer 2

there's a total of 388.8 kids in the class but you can have 0.8 of a person and you can't round a person up so just 388

Explanation:

tldr: 388 people