<PRE><B>Question 168643</B>
The box currently contains 44 coins, consisting of pennies, dimes, and quarters.
Quantity equation: p + d + q = 44
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The number of pennies is equal to the number of dimes,
Quantity equation: p - d = 0
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the total value is $4.37.
Value equation: p + 10d + 25q = 437 cents
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How many of each denomination of coin does he have in the box?
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You have three equation with three variables:
p + d + q = 44 
p - d + 0 = 0
p + 10d + 25q = 437 
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Use any method you know to solve this system to get:
p = 17 
d = 17
q = 10
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Cheers,
Stan H.
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