Head First 2D Geometry

fussy

The customers are always right

circles

Pizza is for sharing, right? But some of Mario’s customers want to

share a pizza and only have pepperoni crust on PART of it.

Todd & Gina agr

ee on ev

erything

except pepp

eroni crus

t.

Gina defini

tel

y

doesn’t w

ant

p

epp

eroni.

I want at least a

little pepperoni

with my pizza!!

I’m

vegetarian, and

pepperoni upsets

Fido’s stomach.

F

ido doesn’t r

eally car

e wha

t

kind of crust he gets, but Gina

says no pepp

eroni f

or him, ei

ther.

Todd and Gina always order an 18-inch Super Veggie deep-dish

pizza. They ask for it cut into nine equal slices. Gina eats three, Todd

has the other six, but he always gives his last half-slice to Fido.

How much extra should Mario charge for their complicated pepperoni crust requirements?

Nobody likes a

pukey dog....

you are here 4 219

sharpen solution

F

iv

e and a ha

lf slic

es f

or T

odd, with

p

epp

eroni

Ha

lf a slic

e for F

ido, wi

thout

p

epperoni

T

hr

ee slices f

or Gina, no

p

epperoni

Total pepperoni required if we were

going to edge the whole pizza with it:

Pepperoni required for the 5.5 slices

Todd eats:

Price for pepperoni crust:

Todd and Gina always order an 18-inch Super Veggie deep-dish

pizza. They ask for it cut into nine equal slices. Gina eats three, Todd

has the other six, but he always gives his last half-slice to Fido.

How much extra should Mario charge for their complicated pepperoni crust requirements?

18 x ∏ = 56.55 pieces

35 x 5¢ = $1.75

56.55 x 5.5 = 34.55 = 35 to nearest whole piece

9

You might have rounded

her

e fir

s

t—y

our answ

er

s

hould be the same in

this ques

tion.

If you figur

ed out separatel

y tha

t

this w

as 61% (or .61) and used

tha

t instead, tha

t w

orks, t

oo.

220 Chapter 5