Final answer:
Grace bought 12 cups and 4 plates.
Step-by-step explanation:
Let's represent the number of cups as 'c' and the number of plates as 'p'. We are given two pieces of information: the total cost for the cups and plates is $96, and the cost for each cup is $4.50.
We can set up two equations to represent the given information:
4.50c + (4.50 + 1.50)p = 96
c > p
Simplifying the first equation, we get:
6c + 6p = 96
Divide both sides by 6:
c + p = 16
Since we know c > p, we can determine the possible values for c and p:
c = 12 and p = 4
Therefore, she bought 12 cups and 4 plates.