November 2009
Beginner
368 pages
8h 55m
English
Content preview from Head First 2D Geometry
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you are here 4 217
circles
Mario wants to put your pepperoni
crust pricing formula to the test
Mario wants to charge 5 cents per piece of pepperoni. How much does he need to
add to the price of the following orders if they all want the new pepperoni crust? (Use
your calculator and round up or down to the nearest whole piece of pepperoni.)
1: A 14" TexMex with extra jalapenos
2: A 20" “The Works” (hold the mushrooms)
3: Two 6" kids’ Hawaiians, one with extra pineapple
I can’t be charging my customers
wrong prices—understand? So, we’ll
have a go and see if it works. I tell you
the orders, you work out the pepperoni
edge prices, and then when I make the
pizza we’ll see if you were right!
So, is this “Pi” thing just theoretical, or does it actually work
in the real world? It’s time to put your formula to the test.
calculate pie costs with pi
218 Chapter 5
Mario wants to charge 5 cents per piece of pepperoni. How much does he need
to add to the price of the following orders if they all want the new pepperoni crust?
(Use your calculator and round up or down to the nearest whole piece of pepperoni)
1: A 14" TexMex with extra jalapenos
2: A 20" “The Works” (hold the mushrooms)
3: Two 6" kids’ Hawaiians, one with extra pineapple
14 x ∏ = 43.98 = 44 pieces of pepperoni
44 x 5 cents = $2.20
20 x
∏
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.