Final answer:
To find out how many scoops of flour Kendall needs to bake 48 cookies, set up a proportion using the unit rate. Kendall needs 6 scoops of flour.
Step-by-step explanation:
To solve this problem using unit rates, we can first find the unit rate of scoops of flour per cookie in the initial scenario. Kendall baked 40 cookies with 5 scoops of flour, so the unit rate is 5/40 = 1/8 scoops of flour per cookie.
To find how many scoops of flour Kendall needs to bake 48 cookies, we can set up a proportion. Let x represent the number of scoops of flour needed. We have the equation (1/8) = x/48. Cross-multiplying, we get 8x = 48, and solving for x gives us x = 6. Therefore, Kendall needs 6 scoops of flour to bake 48 cookies.