Question 839102
chris has $1.65 in nickles and dimes in his pocket all together 20 coins how many of each type does he have?
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Equations:
Quantity: n + d = 20 coins
Value::  5n+10d = 165 cents
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n + d = 20
n +2d = 33
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Subtract and solve for "d":
d = 13 (# of dimes)
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n = 7 (# of nickels)
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Cheers,
Stan H.
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