Question

Fan and medal! Can someone check my work please? The first challenge to complete is the Penny Problem. The radio station is giving the winner of this challenge a prize pack that includes tickets to see his or her favorite band in concert. To start off the challenge, 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? You must show all work to receive credit.

Answer 1

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

Answer 2

@ganeshie8

Answer 3

@SolomonZelman

Answer 4

@thomaster