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

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• Anonymous
2 months ago

Snowflake Economics LMAO

• Hockey
Lv 6
2 months ago

9.14 / 10 * 12 = \$10.97

• Nuff Sed
Lv 7
2 months agoReport

Not unless your pizza is measured in a line rather than in the round.

• sepia
Lv 7
2 months ago

If a 10​ pepperoni pizza from a pizza parlor costs ​\$9.14​,

a 12​ pizza from the pizza parlor​ should cost \$10.97.

• Nuff Sed
Lv 7
2 months agoReport

Pizza is round, not linear.

• 2 months ago

compute square inches and extrapolate, or go hungry.

• 2 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 <––––––

• 2 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 <<<

• 2 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.
• SumDude
Lv 7
2 months agoReport

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.

• 2 months ago

It’s 91.4¢ per pepperoni so 12 pepperoni pizza would cost \$10.97.

• 2 months ago