Final answer:
The caterer will prepare 12 pizzas for the large party, while each party guest will consume 1/2 of a pizza.
Step-by-step explanation:
Subject: Mathematics
Grade: Middle School
To determine the number of pizzas the caterer will prepare for a large party, we need to calculate twice the number of pizzas she usually prepares. Since the caterer usually prepares 6 pizzas, we multiply 6 by 2 to get 12 pizzas for the large party.
Next, we need to calculate the total amount of pizza each party guest will eat. The caterer estimates that each guest will eat 1/2 of a pizza. Therefore, we multiply 1/2 by the total number of guests (100) to get 50 pizzas.
So, the caterer will prepare a total of 12 pizzas for the large party, but each party guest will only eat 1/2 of a pizza, which means they will consume a total of 50 pizzas.