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Head First 2D Geometry by Dawn Griffiths, Stray

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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

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