How many grams of copper are in a penny?
Understand the Problem
The question is asking for the weight of copper contained in a penny, typically for understanding its composition or for a historical or economic perspective.
Answer
2.95 grams
A penny from before 1983 contains about 2.95 grams of copper.
Answer for screen readers
A penny from before 1983 contains about 2.95 grams of copper.
More Information
After 1982, pennies are primarily composed of zinc with a copper plating, significantly reducing the amount of copper in each penny.
Tips
confusing the time periods of when different compositions were used.
Sources
- The Copper Penny Is Worth More Than One Cent - ThoughtCo - thoughtco.com
- Illustrative Mathematics Task - NQ.1 How much is a penny worth? - math.lsu.edu
- Accurately weighing pennies II - Illustrative Mathematics Tasks - tasks.illustrativemathematics.org
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