Final answer:
The recipe requires 1.5 cups of flour per cup of mashed banana.
Step-by-step explanation:
To find the number of cups of flour per cup of mashed banana, we need to set up a proportion using the given information.
Let x be the number of cups of flour required for 1 cup of mashed banana.
Using the given ratio of 6 cups of mashed banana to 9 cups of flour, we can write the proportion:
6 cups / 9 cups = 1 cup / x cups
Cross multiply and solve for x:
6x = 9
x = 9 / 6
x = 1.5
Therefore, the recipe requires 1.5 cups of flour per cup of mashed banana.