3C + 4M = 12.50
3C + 2M = 8.50
Subtract the second equation from the first and solve.
Jack bought 3 slices of cheese pizza and 4 slices of mushroom pizza for a total cost of $12.50. Grace bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of $8.50. What is the cost of one slice of mushroom pizza?
1 answer
1 answer