Question 820549
Phuong has $2 in nickels and dimes in his bank. The number of dimes is five more than twice as many nickels. How many of each type of coin are in bank?
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Value Eq:: 5n+10d = 200 cents
Quantity::  d = 2n+5
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Substitute for "d" and solve for "n"::
5n + 10(2n+5) = 200
25n + 50 = 200
25n = 150
n = 6 (# of nickels)
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Solve for "d"::
d = 2n+5
d = 2*6+5
d = 17 (# of dimes)
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Cheers,
Stan H.
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