I'm having difficulty with changing dimensions of plane and solid figures, and I've been stuck on this question for wayyyy too long.

Mario Agnello is opening a new pizza shop in town. He plans to offer a 12-inch diameter pizza and an 18-inch diameter pizza. He has set the price of a 12-inch cheese pizza at $8.00, based on the amount of ingredients needed to cover that size crust. If Mario would like to keep the pricing proportional, what should he charge for an 18-inch cheese pizza? Show and explain your solution.

Question

I'm having difficulty with changing dimensions of plane and solid figures, and I've been stuck on this question for wayyyy too long.

Mario Agnello is opening a new pizza shop in town. He plans to offer a 12-inch diameter pizza and an 18-inch diameter pizza. He has set the price of a 12-inch cheese pizza at $8.00, based on the amount of ingredients needed to cover that size crust. If Mario would like to keep the pricing proportional, what should he charge for an 18-inch cheese pizza?  Show and explain your solution.

anonymous · Answer

$8 dollars for 12 inch $1 for 12/8 inch= 1.5 inch or else you can say... 12 inch for $8 1 inch for $ 8/12 = $ 0.667

glorylove · Answer

So I'm supposed to add that to the existing $8.00 for the price of the 18-inch pizza?

anonymous · Answer

yup

glorylove · Answer

Thank you! Is there any way to check it, though?

anonymous · Answer

using ratio Area of 12-inch pizza: Area of 18-inch pizza=Price of 12-inch pizza:Price of 18-inch pizza pi 36:pi 81=8:x I removed pi for easier calculation 36/81=8/x

glorylove · Answer

Alright, well thank you for your help!

anonymous · Answer

your welcome, i did my best!