
David W. answered 01/08/19
Tutor
4.7
(90)
Experienced Prof
Let x = total number if students in the school
"88% of x is 528" [note: all other info is TMI -- too much information]
88% may also be written as 0.88 or as 88/100 (or 22/25) as needed by the problem.
(88/100)x = 528
(22/25)x = 528
22x = 13200
x = 600
There are 600 students in the school.
Check:
Is (88/100)*600 = 528 ?
528 = 528 ?yes