With pennies, dimes, and quarters only, this is not possible.
If you could have fractions of coins or negative coins, here are some equations which together represent all solutions:
P=5t
D=-8t+400/3
Q=3t-100/3
Where P, D, and Q are the numbers of pennies, dimes, and quarters respectively, and t is any number.
HOWEVER: If fifty-cent pieces are allowed, you may have:
60 pennies, 39 dimes, 0 quarters, and 1 fifty-cent piece
65 pennies, 31 dimes, 3 quarters, and 1 fifty-cent piece
70 pennies, 23 dimes, 6 quarters, and 1 fifty-cent piece
75 pennies, 15 dimes, 9 quarters, and 1 fifty-cent piece
80 pennies, 7 dimes, 12 quarters, and 1 fifty-cent piece
75 pennies, 20 dimes, 1 quarter, and 4 fifty-cent pieces
80 pennies, 12 dimes, 4 quarters, and 4 fifty-cent pieces
85 pennies, 4 dimes, 7 quarters, and 4 fifty-cent pieces
90 pennies, 1 dime, 2 quarters, and 7 fifty-cent piecesAnd for a riddle you could say Half Dime (A Coin From the 1700's and 1800's.)
Half dimes from the 1700's and 1800's.
you have 3 quarters 31 dimes and 65 pennies
A nickel is 5 cents. A dollar is 100 cents so it's the same as 100 / 5 = 20 nickels. Finally, one hundred dollars is equal to 100 * 20 = 2000 nickels.
He has jillian.
A nickel is 5 cents and a dollar is 100 cents, so you need 100/5 = 20 coins.
Half dimes from the 1700's and 1800's.
100 nickels = $5.00
you have 3 quarters 31 dimes and 65 pennies
One Dime Eighteen Nickels 1x10=10 18x5=90 10+90=100
4 quarters or 10 dimes or 20 nickels or 100 pennies. One dollar is equal to 100 cents so many combinations of coins can be used.
There are 2000 nickels in $100: A nickel is 5¢ so there are 20 nickels in $1. Then $100 = 20*100 = 2000 coins.
12 x 100/80 ie 15%
One bank box contains $100 worth of nickels, which is 2,000 coins.
30 dimes, 50 half-dollars, and 20 pennies
You can use 1 quarter, 2 nickels, 2 dimes and 45 pennies OR 40 pennies, 8 nickels and 2 dimes
One dollar = 100 cents. That's 20 nickels (5 cent coins) per dollar. 20 x 10 = 200
90 pennies 7 half dollars 2 quarters 1 dime