The radio station has placed pennies in a cylindrical glass jar. Each penny is 0.75 inches in diameter and 0.061 inches thick. If the cylindrical glass jar containing the pennies has a diameter of 6 inches and a height of 11.5 inches, how many pennies can fit inside the jar?

Question

anonymous · Answer

@SolomonZelman I did the work, can you just see if it is correct? @shamim

anonymous · Answer

@Loser66  or you can check too :)

loser66 · Answer

hahaha.. ok, show your work first

anonymous · Answer

Lol thanks! Hold on :)

anonymous · Answer

This is my answer because I have to show work and write a written response! 

Each Penny is 0.75 in diameter, and 0.065 inches thick.
Cylindrical Glass jar is 6 inches in diameter, and 11.5 inches in height. 
Volume of cylindrical glass
V = 3.14r^2 h
V = 3.14 (3)^2 (11.5)
V = 3.14 (9) (11.5)
V = 3.14 (103.5)
V = 324.99 inches. 
Volume of Pennies 
V = 3.14r ^2 h
V = 3.14 (0.375)^2 (0.061)
V = 0.4415625 ( 0.061)
V = 0.026935312
Now divide the volume of the glass by the volume of the pennies. And round it to the nearest hundredths. 
324.99 / 0.026935312 = 12065.57399 
rounded to the nearest hundredths 12065.57

anonymous · Answer

Total of 985 pennies in the jar?

loser66 · Answer

the top part is perfectly ok, but why total of 985 pennies? why is it not 12065 pennies?

anonymous · Answer

oooh I got the "totsl of 985 pennies" online. I guess it's wrong then. SO then 12,065 pennies would be my answer?

anonymous · Answer

total*

loser66 · Answer

I think so. :)

anonymous · Answer

Yay, thank you!

anonymous · Answer

@SolomonZelman do you also agree?
@Loser66 sorry I like to as two people lol

anonymous · Answer

ask

loser66 · Answer

hahahah... It's Ok, friend.