Question

Arianna's Pizzeria made 19 pizzas. 15 of the pizzas had thin crust and the rest had thick crust. What is the ratio of the number of thick-crust pizzas to the number of thin-crust pizzas?

Answer 1

4:15

Explanation:

there are 15 thin crust pizzas and there are 19 pizzas. subtract 19-15 and you get 4. there are 4 thick crust.