Kai has a coupon for $5 off each pizza if he orders 5 or more pizzas. He’s hosting a party, so he orders 7 pizzas and uses his coupon. He spends $84, excluding tax and tip. After setting up and solving an equation to represent this scenario, interpret the meaning of x in your equation.
Let's represent the cost of each pizza before applying the coupon as "p" and the number of pizzas as "x."
Since Kai orders 7 pizzas, the cost before applying the coupon for each pizza is p - $5.
The total cost of 7 pizzas without the discount is 7 * (p - $5).
According to the information given, the total cost of 7 pizzas, after applying the coupon, is $84. Setting up an equation:
7 * (p - $5) = $84
Now we need to determine the meaning of "x" in our equation. In this scenario, "x" represents the number of pizzas, so it is equal to 7 since Kai orders 7 pizzas.