A collection of quarters and nickels is worth $1.25. There are 13 coins in all. How many of each are there?
let the number of nickel coins be x
the quarters will be 13-x
value of nickels = 5x
Value of quarters = 25(13-x)
The total value 125 cents
x=10 the number of nickel coins
13-10= 3 is the number of quarter coins
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