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Harlamova29_29 [7]
3 years ago
9

Mary has 30 nickels and dimes worth $2.40. how many nickels does Mary have

Mathematics
2 answers:
melomori [17]3 years ago
8 0
Mary has 12 nickels $2.40 - 30 dimes = 12 nickels
Troyanec [42]3 years ago
5 0
N=nickels
d=dimes

n+d = 30
n+18 = 30
n = 30-18
n = 12 (number of nickels)

therefore Mary has 12 nickels
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