SOLUTION: In a collection of coins, the number of quarters is twice the number of dimes and the number of nickels is five less than the number of dimes. How many type of each coin are in th
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Question 314089: In a collection of coins, the number of quarters is twice the number of dimes and the number of nickels is five less than the number of dimes. How many type of each coin are in the collection, if the total amount of money is $9.50? Answer by mananth(16949) (Show Source):
You can put this solution on YOUR website! let dimes be x
nickels = x-5
quarters = 2x
..
Value of the coins
10x+5(x-5)+25*2x=950 cents
10x+5x-25+50x = 950
65x=975
x=975/65
x=15 dimes
nickels = x-5 = 10
quarters = 2x = 30
