12 x 100/80 ie 15%
16 % of the coins are dimes. 4 of a total of 25.
You will make 55 cents with 12 coins by using 5 pennies, 3 dimes, and 4 nickels.5 pennies, 3 dimes, and 4 nickels will make 55 cents with 12 coins.
12 nickels, 4 dimes.
10 nickels and 2 quarters
You could have 6 dimes, 4 nickels and 2 pennies.
4 Qs 12 Dimes 20 Nickles
8 quarters and 12 nickels
12 quarters,7 dimes, and 3 nickels
One solution is 10 nickels, because if you put in a dollar it can be broken into: 2 quarters (50 cents) so 50 cents are left, and you have 10 coins left to use If these 10 coins are all nickels, (total: 50 cents), the problem is solved! .5 +.5 =1 dollar
There are 29 ways.
12
Three dimes, four nickels, five pennies