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arlik [135]
3 years ago
5

Nick has 30 coins in his pocket. Some coins are nickels. Some are dimes. The total value of all of the coins in his pocket is $1

.65. Let n=Number of nickels . Let d=Number of dimes . Complete each statement. The equation that represents the total number of coins is
Mathematics
1 answer:
HACTEHA [7]3 years ago
6 0
X + y= 30
.05x + .10y= 1.65

n + d = 30
5n + 10d = 165

-5n - 5d = -150
5n + 10d = 165

5d = 15

d = 3 dimes

n + 3 = 30

n= 27 nickels
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