To find out how many students in Ms. Jay's homeroom would be expected to have an A, we can use proportions.
First, we can set up a proportion using the given information:
A/Total students = A/Total students in Ms. Darnell's homeroom
We know that in Ms. Darnell's homeroom, there are 72 students and 9 of them have an A. So we have:
9/72 = A/16
Now we can solve for A by cross multiplying:
9 * 16 = 72 * A
144 = 72A
Finally, we can solve for A by dividing both sides of the equation by 72:
A = 144/72
A = 2
Therefore, we would expect 2 students in Ms. Jay's homeroom to have an A.