SOLUTION: Warren has 40 coins (all nickels, dimes and quarters) worth $4.05. He has 7 more nickels than dimes. How many quarters does Warren have? Could you please show equation?
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Question 353379: Warren has 40 coins (all nickels, dimes and quarters) worth $4.05. He has 7 more nickels than dimes. How many quarters does Warren have? Could you please show equation?
Thank you Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Warren has 40 coins (all nickels, dimes and quarters) worth $4.05. He has 7 more nickels than dimes. How many quarters does Warren have? Could you please show equation?
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Equations:
n + d + q = 40 coins
5n+10d+25q = 405 cents
n = d + 7
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Rearrange and solve the system.
Cheers,
Stan H.
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