Answer:
4 pounds of ingredients are used in each batch.
Step-by-step explanation:
Amount of flour = [tex]21\frac{1}{2}pounds = \frac{43}{2}pounds[/tex]
Amount of butter = 8 pounds
Amount of sugar = [tex]18\frac{1}{2}pounds= \frac{37}{2} pounds[/tex]
So, the total amount of all ingredients will be: [tex](\frac{43}{2}+\frac{37}{2}+8)pounds = (\frac{43+37+16}{2}) pounds= \frac{96}{2} pounds = 48 pounds[/tex]
Given that, she makes 12 batches of cookies using all the ingredients.
Thus, the amount of ingredients used in each batch [tex]=\frac{48}{12} pounds = 4 pounds[/tex]
