Question 857881: If 20 coins were used to pay a bill of $1.80 and only quarters and nickels were used, how many of each coin was used? Answer by JulietG(1812) (Show Source):
You can put this solution on YOUR website! I know there's a mathematical way to do this, but trial and error is faster for such small numbers.
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5 quarters = 1.25
15 nickels = .75
That's too much.
4 quarters = 1.00
16 nickels = .80
Success!