Question 279913
.19T+.95S=.91(T+S)
.19T+.95S=.91T+.91S
.19T-.91T=.91S-.95S
-.72T=-.04S
.72/.04=18/1 IS THE RATIO OF STUDENTS TO TEACHERS.
PROOF:
.19*1+.95*18=.91(1+18)
.19+17.1=.91*19
17.29=17.29