Answer:
5.25 cups.
Explanation:
We have been given that the chocolate chip cookie recipe you use calls for 1.5 cups of flour. The recipe makes 2 dozen cookies. We are asked to find the cups of flour that are needed to make 7 dozens of cookies.
First of all, we will divide 1.5 cups by 2 to find amount of flour needed for one batch of cookies and multiply the result by 7 as:
![\text{Cups of flour needed for 7 dozen cookies}=(1.5)/(2)* 7](https://img.qammunity.org/2020/formulas/mathematics/middle-school/22u8kyyo7lk7r810veu6cblvjwnsb5mmj3.png)
![\text{Cups of flour needed for 7 dozen cookies}=0.75* 7](https://img.qammunity.org/2020/formulas/mathematics/middle-school/js5udd2nqrdr7kmxypmoci0nui0i3ty0xu.png)
![\text{Cups of flour needed for 7 dozen cookies}=5.25](https://img.qammunity.org/2020/formulas/mathematics/middle-school/5cbavnwkzhyz4u25v9qvwjherkkbpao3cj.png)
Therefore, 5.25 cups of flour are needed for 7 dozen of cookies.