Final answer:
The question sets up a consistent ratio of 5 cups of peaches for each pie. Therefore, Patty Pies would need 45 cups of peaches to make 9 pies.
Step-by-step explanation:
The question involves basic proportional reasoning in mathematics. The information provided indicates that there is a consistent ratio of cups of peaches to pies. Specifically, for each pie, 5 cups of fruit are used. This is evidenced by the data points provided: 2 pies with 10 cups, 3 pies with 15 cups, and 4 pies with 20 cups.
To find out how many cups of fruit would be needed for 9 pies, we can apply this ratio. As each pie requires 5 cups of fruit, for 9 pies we would need 9*5 = 45 cups of peaches.
Learn more about Proportional Reasoning