Question 1117878: Sally has 52 coins all dimes and nickels that have the total value of $4.20. How many nickels does this bitch have? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Sally has 52 coins all dimes and nickels that have the total value of $4.20. How many nickels does this bitch have?
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n + d = 52
5n +10d = 420
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Or:
52 nickels = 260
Each nickel replaced by a dime adds 5 cents.
420 - 260 = 160
160/5 = 32 replacements by dimes.