# If a 10 pepperoni pizza from a pizza parlor costs $9.14, what should a 12 pizza from the pizza parlor cost?

### 9 Answers

- Anonymous2 months ago
Snowflake Economics LMAO

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- HockeyLv 62 months ago
9.14 / 10 * 12 = $10.97

- Nuff SedLv 72 months agoReport
Not unless your pizza is measured in a line rather than in the round.

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- SumDudeLv 72 months ago
compute square inches and extrapolate, or go hungry.

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- MichaelLv 72 months ago
As someone who has actual bought pizza I'm going to assume that you are talking about a 10 inch vs 12 inch pizza. Where the size is the diameter of the pizza.

The area is proportional to the square of the diameter

therefor the price will also be proportional to the square of the diameter

p/9.14 = (12/10)²

p = (12/10)² * 9.14

p = 144 / 100 * 9.14

p = 13.1616

$13.16 <––––––

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- oldschoolLv 72 months ago
We know the price must be proportional to the area of pizza. Thus it is proportional to the square of the diameter. Let x be the price:

9.14/10² = x/12²

x = 12² * 9.14/10² = $13.16 <<<

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@dogsafire: you give the general wizardry of idiots here way too much credit.

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- msoexpertLv 62 months ago
The math concept here is equivalency. So it's just like 1/2 = X/4 and solving for X to make the two fractions equivalent. The only difference is that your numbers are different. You have 9.14/10 = X/12. Solve for X, which is your numerator and you'll have how much that 12 inch or slice pizza will cost. In other words, you're getting your cost per inch or slice and using this to get your answer.

Source(s): I've taught math on the college and in the public schools. And have helped out lots of students with problems like this.In this particular case I do wish you had given a specific answer. A 10" pizza for $10 DOES NOT equate to $12 for a 12" pizza. The unit of cost is a SQUARE inch.

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- Donnie PorkoLv 72 months ago
It’s 91.4¢ per pepperoni so 12 pepperoni pizza would cost $10.97.

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Love that answer, Donnie !!

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- 2 months ago
About 12 bucks...

... with coupon, lol (and before tax)

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