Question

goldie's pizza place is known throughout the city. The small Baby Bear pizza has a radius of 6 inches and sells for $10. Mama Bear pizza sells for $12.50 and has an 8 inch radius. The large papa bear pizza is 18 inches in diameter and Sella for 17 dollars. What size has the most pizza edge per dollar? What is the circumference of this pizza?

Answer 1

$\bf \textit{circumference of a circle}\\\\ C=2\pi r\qquad r=radius=\frac{diameter}{2}\\\\ -----------------------------\\\\ \begin{array}{lcccclllll} &radius&\ &Cmfc&\frac{Cmfc}{\ }\\ &---&---&-----&-----\\ \textit{Baby Bear}&6&10&2\pi \cdot 6&\frac{2\pi \cdot 6}{10}\\\\ \textit{Mama Bear}&8&12.50&2\pi \cdot 8&\frac{2\pi \cdot 8}{12.50}\\\\ \textit{Papa Bear}& \begin{array}{llll} diameter=18\\ radius=\frac{18}{2}=9 \end{array}&17&2\pi \cdot 9&\frac{2\pi \cdot 9}{17} \end{array}$

notice, Papa Bear is 18inches in diameter, but radius is half that

and "edge per dollar" simply means, how much circumference per dollar
or $\bf \cfrac{Cmfc}{\ }$

Answer 2

Baby bear: 6r and sells for $10
Mama bear:8r and sells for $12.50
Papa bear:18d and sells for $17
B.B Bear: $1.67
M.M Bear:$1.56
P.P Bear:$1.89
Answer:Papa bear pizza
Circumference:
Formula:C:pi(d)
C:18 times 3.14 equals 56.52
Circumference of Papa Bear:56.52