Final answer:
A total of 10 pizzas are needed for a pizza party with 30 kids where each child will eat 4 slices and a pizza has 12 slices.
Step-by-step explanation:
To calculate how many pizzas are needed for a party with 30 kids where each child will eat 4 slices of pizza, and one pizza has 12 slices, we must first find out the total number of slices required. This is done by multiplying the number of kids by the number of slices each will eat:
30 kids × 4 slices per kid = 120 slices needed in total.
Next, we determine how many pizzas are needed by dividing the total number of slices needed by the number of slices per pizza:
120 total slices ÷ 12 slices per pizza = 10 pizzas.
Therefore, 10 pizzas are required to ensure that each child gets 4 slices.