A chemical reaction converts a substance Ato a substance Y. At the start of the reaction, the quantity of A present is a grams.
At time t seconds later, the quantity of Y present is y grams. The rate of the reaction, in grams/sec, is given by Rate=ky(a−y), where k is a positive constant. (a) For what values of y is the rate nonnegative?
Well what I would do first is divide the 900 student by the 445 teacher to get 20 students per teacher. Now I would take that 20 and multiply it by 110 teacher to get 2200 Students.