9514 1404 393
Answer:
(n, d) = (56, 68)
Hunter has 56 nickels and 68 dimes.
Step-by-step explanation:
The equations can be solved by using the second equation to substitute for d in the first equation.
10(n +12) +5n = 960
120 +15n = 960 . . . . . . . eliminate parentheses
15n = 840 . . . . . . . . . . . . subtract 120
n = 56 . . . . . . . . . . . . . . . divide by 15
d = 56 +12 = 68 . . . . . . . find d
The solution is n = 56, d = 68. This means Hunter has 56 nickels and 68 dimes.
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The meaning of the solution comes from the definitions of the variables.
