Answer:
The two pizzas will same cost when 2 toppings are added on the pizza.
Explanation:
We are given the following in the question:
Papa's pizza:
Cost of pizza = $6.80
Cost of each topping = $0.90
Let x be the total number of toppings.
Total cost =
![c_1(x) = 6.80 + 0.90x](https://img.qammunity.org/2021/formulas/mathematics/high-school/tyarqswngiw5l044rixcs468n2mp3h90z5.png)
Little Italy's pizza:
Cost of pizza = $7.30
Cost of each topping = $0.65
Let x be the total number of toppings.
Total cost =
![c_2(x) = 7.30 + 0.65x](https://img.qammunity.org/2021/formulas/mathematics/high-school/fxxu7pbpxcfb8oz8re2wguppb679bz4m8m.png)
Equating the two equations, we get,
![6.80+0,90x = 7.30 + 0.65x\\\Rightarrow 0.25x = 0.5\\\Rightarrow x = 2](https://img.qammunity.org/2021/formulas/mathematics/high-school/ompwvzomx1ub88n0v87nckonwy19k4qtk9.png)
Thus, the two pizzas will same cost when 2 toppings are added on the pizza.