How do you solve this

Question

Pizza Palace charges a fixed amount for a basic pizza plus an additional cost per topping. It costs $2.15 for each topping. A 3-topping pizza costs $13.25. Find an equation for the line relating cost, C, in dollars, and number of toppings, t.

Answer 1

Hi Gian,

The cost, C , can be determined by multiplying the number of toppings (t ) ordered by $2.15 and adding on the basic price, b.

C = 2.15 • t + b

You can use the information provided about the 3-topping pizza to find the basic cost first.

$13.25 = 2.15 • 3 + b

13.25 = 6.45 + b

13.25 - 6.45 = 6.45 + b - 6.45

$6.80 = b

The basic price for any pizza ordered is $6.80

Now we can write the following equation that could be used to find the cost of any pizza ordered:

C = $2.15 • t + $6.80

Hope this helps Gian. Let me know if you have more questions or would like to schedule a learning session.

Mrs. R.