*9.5
? Do you mean KEY DATES? A key refers to the date/mintmark combinations that are difficult to find (or expensive) in a series.
5 ways
As there are 100 cents in a dollar you simply divide the number of cents by 100 to find the number of dollars. 209.99 cents would equal $2.10 dollars (rounded up to the nearest cent) but $209.99 dollars would equal 20999 cents.
1 coin= $1 dollar piece 2 coins= 2 $0.50 pieces and so on. The least number of coins impossible to go into a dollar is 77 coins.
If there are 14 rows in the triangle, then there are 14*(14-1)/2 coins in the arrangement, i.e. 91 dimes. To find the value of the collection, simply multiply by the value of a dime. I believe this is 10 cents, so the coins are worth 910 cents, or $9.10.
Quarter (25) Dime (35) Dime (45) Dime (55) Nickel (60) Penny (61)
The Farthest back I could find was 1964, and it was $85,909. Which is equal to $622,000.00 in today's economy.
It is used for lots of things such as finding out the total possible outcomes of tossing coins. You find the line that corresponds with how many coins you toss and add all the numbers in that line to get the number of possible outcomes also you can use it to find combinations and permutations and triangular numbers
Silver coins alone are worth about $165 USD per 1/2 pound on eBay, wheat cents are 5-15 dollars per pound. If you use this data, you can find the retail value of your coins.
The smallest coin available is a penny, worth one cent. Simply shift the decimal two places to the right (because you're going from dollars and cents to strictly cents) to find that you would need 2930 pennies to make $29.30 using the largest number of coins possible. Using any other coins would only decrease the number of coins in the combination.
Coins have mintmarks not codes. Mintmarks on Buffalo nickels are on the reverse under FIVE CENTS and can only be a D or S.
The coin is so very common circulated coins are 2 to 5 cents, one that looks like new is 10 cents.