about 53.6% of the students in the class got an A. if 15 students got an a, how many students were in the class

Answer 1

You can work this as a proportion:

n = number of students

53.6 /100 = 15 / n ⇒

n = 15 / (53.6 / 100) = ?

The answer is not an integer, so you must round off.