A copper penny has a mass of 3.015g and contains 95% Cu. If Cu costs 80 cents per pound what is the value of the copper in 100 pennies?
100pennies x 3.015g/penny x 95gCu/100g pennies x 1pound / 454g x 80cents/1pound =
How stupid can they be. this occurs in each forex worldwide faster or later. there's no longer something it is elementary to purchase for a million cent. was bazooka bubble gum yet now that is long gone so I say eliminate the penny...
It has been a long time since copper was 80c per pound. Canada in Feb of this year, stopped using pennies because of the expense. But that is not your question. I'll answer what a penny costs to manufacture today as well. 3.09 dollars per pound. Also as of 1992 pennies were made of more zinc than copper. Pennies contain nowhere near 92% copper. 3.015 grams /coin']* [ 1 pound / 454 grams] * [80 c / pound] * [95 coin /100 copper] = 0.507 cents/copper amount is what it is worth. Now as an exercise do 309 cents. You should come to 1.95 cents. That's why coins are not 95% copper.
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