On a math test, 12 students earned an a. this number is exactly 25% of the totalnumber of students in the class. how many students are in the class?
a. 15b. 16c. 21d. 30e. 48

Work Shown:

x = number of students in the class

25% of x = (25/100)*x = 0.25x = number of students who got an A

0.25x = 12

x = 12/0.25 divide both sides by 0.25

x = 48

Alternative Method

part/whole = percent/100

12/x = 25/100

12*100 = 25*x cross multiply

1200 = 25x

25x = 1200

x = 1200/25 divide both sides by 25

x = 48

step-by-step explanation:

(s)he  is right it would be 5.5% because it is smaller than 15.5% or anything smaller than 15.5% in general

answer is c

step-by-step explanation: