Before 1982 the US Mint cast penny coins from a copper and zinc mixture. If a 1980 penny weighs 3.051g and contains 0.153g zinc, what is the percent of copper in the coins?

1 answer

See your post above.
Similar Questions
    1. answers icon 4 answers
    1. answers icon 1 answer
  1. 15. On October 21, 1982, the Bureau ifthe Mint changed the composition of pennies. Instead of an alloy of 95% Cu and 5% Zn by
    1. answers icon 0 answers
  2. What is the Amin idea of the passage?A. The cost of making a penny is less than what a penny is worth. B. The cost of making
    1. answers icon 1 answer
more similar questions