Estimate the number of pennies you will able to collect in a cylindrical piggy-bank that has a diameter of 3 inches and a height of 6 inches.
Help pleasee :(

Question

anonymous · Answer

pi * 1.5^2 * 6 = 42.4115008 cubic inches

VOLUME of penny = 3.14159 * 9.5 * 9.5 * 1.27 = .360 cubic centimeters = 0.0219685479 cubic inches

42.4115008 / 0.0219685479 = 1 930.55549 pennies


Check me if I'm wrong

anonymous · Answer

Aha, so we needed to know the height & radius of a penny

anonymous · Answer

We did an estimation problem at the beginning of class which was 2 months ago, we didnt use any measurements etc, so i didnt think we would for this one. We didnt do any other estimation problems ever since the beginning of class