Question 507294: If a person has $5.00 in 25 coins (quarters and dimes only), how many quarters and dimes does he have?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! If a person has $5.00 in 25 coins (quarters and dimes only), how many quarters and dimes does he have?
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Equations:
Quantity Eq: d + q = 25 coins
Value Eq::: 10d+25q= 500 cents)
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Multiply thru the Quantity Eq. by 10 to get:
10d + 10q = 250
10d + 25q = 500
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Subtract and solve for "q":
15q = 250
q = not a whole number
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Conclusion: NO solution
You cannot have 25 dimes and quarters that add up to $5.00
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Cheers,
Stan H.
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