54 students is 90% of how many students?
\(54= \frac{54}{100}=0.9 \\ \\ 54/0.9=60 \\ \\ 54 \ is \ 90 \ percent \ of \ 60 \ students\)
ratio and proportion
54 /x=90/100
cross multiply
90x= 5400
x= 60 students
hope this helps