Question

At Paesano's Pizza, the price of a large pizza is determined by P = 9+ 1.5x, where x represents the number of toppings added to a cheese pizza. Donna spent $13.50 on a large pizza. How many toppings did she get?

Answer 1

`P(x)=9+1.5x`

Let's evaluate the function for:

`P(x)=13.50`
`\begin{gathered} 9+1.5x=13.5 \\ \text{Solving for x:} \\ \text{Subtract 9 from both sides:} \\ 9+1.5x-9=13.5-9 \\ 1.5x=4.5 \\ \text{Divide both sides by 1.5:} \\ (1.5x)/(1.5)=(4.5)/(1.5) \\ x=3 \end{gathered}`

She get 3 toppings