64.1k views
4 votes
1 penny has a mass of 4 grams and is 1.55 millimeters thick. How much mass will a stack of 20 pennies tall have?

User KwintenP
by
9.2k points

1 Answer

3 votes
Since each penny has a mass of 4 grams, and we want to find out how much mass 20 pennies has, we do 4 (for 1 penny)*20=80 grams
User Allen Koo
by
7.6k points