SOLUTION: Amanda has a jar of 16 coins. In this jar, there are only quarters and nickels with a total of $2.00. How many nickels and quarters does Amanda have?
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Question 1057287: Amanda has a jar of 16 coins. In this jar, there are only quarters and nickels with a total of $2.00. How many nickels and quarters does Amanda have? Found 2 solutions by Alan3354, ikleyn:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Amanda has a jar of 16 coins. In this jar, there are only quarters and nickels with a total of $2.00. How many nickels and quarters does Amanda have?
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q + d = 16
25q + 10d = 200
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You can put this solution on YOUR website! .
Amanda has a jar of 16 coins. In this jar, there are only quarters and nickels with a total of $2.00.
How many nickels and quarters does Amanda have?
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n + q = 16, (1)
5n + 25q = 200. (2)
From (1), express n = 16 -q and substitute it into (2), replacing "n". You will get
5*(16-q) + 25q = 200, or
80 - 5q + 25q = 200, or
20q = 200 - 80,
20q = 120,
q = = 6.
Answer. 6 quarters and 10 nickels.
