Our paper money is called bills or dollars. The one and two bills were replaced by coins. The one dollar coin is called a loonie after the common loon engraved on its reverse side. When the 2 dollar coin came along it was already being dubbed the twoonie. the other coins are pennies, nickels, dimes and quarters.
If you have 3 quarters, 4 dimes, and 4 pennies, you have $1.19. You also have the largest amount of money in coins without being able to make change for a dollar.
You would have to know the exact number of coins per denomination. Modern U.S. quarters weigh 5.67 grams. Dimes 2.27 grams. Nickels 5 grams.
In 1960, Canadian 1 cent pieces ("pennies") were made of bronze, 5 cent pieces ("nickels") were made of nickel, and 10 cent pieces ("dimes"), 25 cent pieces ("quarters"), 50 cent pieces ("half dollars") and dollar coins were all composed of 80% silver (with, I believe, the balance being copper).
A quarter got its name because it's worth one quarter, or one fourth, of a dollar. That is, a dollar is worth as much as four quarters. Being that the quarter is worth less, it's smaller.
Zinc is used for Canadian nickels and the cores of Canadian pennies (i dont know about the US). Pennies are made from Zinc cores and coated with copper. Its cheaper than making pennies out of copper. (They used to make pennies out of copper, but they stopped because people would get pennies and melt them down and sell the copper for profit :D ) -Besides being used as a filler metal, zinc is widely used in corrosion management. It is used in paint, to coat metals, and as anodes on the bottom of boats. It also is used in vitamins.
225 (6 quarters being 1½)
1964 was the last date for 90% silver quarters and dimes. The composition was changed to copper-nickel in 1965, when the price of silver soared over the face value of the coins. Note that halves were made out of 40% silver for 6 more years. Also, contrary to popular myth, pre-1965 nickels were NOT made of silver, except for the famous war nickels made during 1942-45.
Assuming the plural is used because there are more than 1 of each coin, then there are at least 2 quarters and at most 48 quarters. If the plural is being used in a generic way, meaning at least 1 of each coin must be present, then there is at least 1 quarter and at most 49 quarters. If you want a more specific answer, then more specific data is needed in the question.
1860 The last copper pennies were made in England, and the same year the first bronze pennies were made.
I can't be 100% sure, but their is a thing in cort about being able to melt pennies.
Steel pennies were only minted in 1943, however some examples of steel pennies being struck in error in 1944.