Question

1. A local pizzeria sold 65 pizzas yesterday. The owner offers the employees a bonus if the number of whole pizzas sold increases by 15% today. How many whole pizzas must the pizzeria sell for employees to receive the bonus? Explain your reasoning

Answer 1

We want to increase by 15% so we want 100% plus 15% which means 115%

Since we want 115% lets make the calc:

65 pizzas ----------- 100%

x pizzas ------------- 115%

Multiply in cross

65 . 115 = 100.x

7475 = 100.x

x = 74,75

Since we cant sell 74 pizzas and 0,75 pizza we will sell 75 pizzas

So we need to sell 75 pizzas to employees receive the bonus