Pizza Deal
Algebra
Level
pending
Luigi's Pizzeria is offering a special deal: Buy any small 10-inch Neopolitan Pizza, and you get a second one, half the price. Their 10-inch pizzas cost $7, and their 14-inch pizzas cost $10. Which is the better deal?
The 14-inch pizza
The 10-inch pizza
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1 solution
But buying two small 1 0 inch pizzas will cost $ 1 0 . 5 .
The area of those pizzas is 2 × 2 5 π = 5 0 π .
The price of the 1 4 inch pizza is $ 1 0 and its area is 4 9 π .
Looking at it in this perspective, both deals are the same. In the former one, we are paying half a dollar more but at the same time we have one inch more of pizza.