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SOVA2 [1]
3 years ago
6

Wilma has 28 coins, all nickels, and dimes worth $2.05. How many nickels does she have?

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
4 0

Answer:

15 nickels and 13 dimes

Step-by-step explanation:

5n + 10d = 205 cents

n + d = 28

n = 28-d

5(28-d) +10d = 205

140 -5d + 10d = 205

5d = 65

d = 13

n = 28-d = 28-13 = 15

5n = 5(15) = 75

10d = 10(13) = 130

75+130=205

tiny-mole [99]3 years ago
3 0
15 nickels and 13 dimes
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