SOLUTION: Ben has $3.40 in nickels and dimes. He has 4 more dimes than nickels. How many of each coin does he have?

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Question 1008842: Ben has $3.40 in nickels and dimes. He has 4 more dimes than nickels. How many of each coin does he have?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Ben has $3.40 in nickels and dimes. He has 4 more dimes than nickels. How many of each coin does he have?
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Equations:
Quantity Eq:: d = n+4
Value Eq:: 5n + 10d = 340 cents
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Simplify the Value eq::
n + 2d = 68
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Now, substitute for "d" and solve for "n"::
n + 2(n+4) = 68
3n + 8 = 68
3n = 60
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n = 20 (# of nickels)
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Solve for "d":
d = n+4
d = 24 (# of dimes)
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Cheers,
Stan H.
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