Question

Kathy bought a total of 60 cupcakes. Supreme cupcakes cost $12 each and regular cupcakes cost $3 each. She spent a total of $90. Which system of equations will determine the number of supreme (s) and regular (r) cupcakes that Kathy purchased?

Answer 1

s + r = 60 and 12s + 3r = 90

Explanation:

I just took the quiz and it said this is correct