Question 1112925
A collection of dimes and nickels is worth $3.30. If there are 42 coins in all, how much of each kind of coin are there? 
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Equations:
Quantity:: d + n = 42 coins
Value:::: 10d + 5n = 330 cents
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Modify::
d + n = 42
2d + n = 66
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Subtract and solve for "d":
d = 24 (# of dimes)
n = 42-24 = 18 (# of nickels)
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Cheers,
Stan H.
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