Answer:
24 total students
Step-by-step explanation:
multiply 25 times 18 to get 450 then divide 450 by 75 then you get 6, which is the total amount of girls, so 6 + 18 = 24
x = number of students
75% of x = number of boys
(75/100)*x = 18
0.75x = 18
x = 18/0.75 <--- divide both sides by 0.75 to isolate x
x = 24
So there are 24 students in the class
Note how 18/24 = 3/4 = 0.75 = 75% represents the percentage of boys
