At Pizza Pi, 9% of the pizzas made last week had extra cheese. If 27 pizzas had extra cheese, how many pizzas in all were made last week?

300 .09x = 27

To find the total number of pizzas made last week, we need to determine the percentage of pizzas that had extra cheese and the number of pizzas that had extra cheese. Then we can use this information to find the total number of pizzas.

First, let's set up an equation using the given information. We are told that 9% of the pizzas made last week had extra cheese, which can be written as 9/100. We also know that the number of pizzas with extra cheese is 27. We can represent this as:

(9/100) * X = 27

To solve for X, the total number of pizzas made last week, we can multiply both sides of the equation by 100/9:

X = (27 * 100) / 9

Simplifying, we get:

X = 300

Therefore, the total number of pizzas made last week at Pizza Pi was 300.