Question

The Pie Factory sells an apple pie with a diameter of 16 inches for $10.99. What is the approximate cost per square inch of surface area of the top of the pie? Use 3.14 for p.

Answer 1

What is the area of the circle?

Answer 2

it dose not say

Answer 3

how would you find it

Answer 4

any ideas?

Answer 5

multiply ?

Answer 6

you would use this formula

A = pi*r^2

Answer 7

so because the diameter is 18, the radius is 18/2 = 9

Answer 8

oh wait 16, not 18

Answer 9

16/2 = 8 is the radius

Answer 10

thanks :D

Answer 11

so

A = pi*r^2

A = 3.14*8^2

A = ???

Answer 12

once you get that area, you divide the cost by the area to get the cost per inch

Answer 13

thanks :D

Answer 14

yw, tell me what you get