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OpenStudy (anonymous):
A coin consists of 1/5 zinc, 1/10 manganese, and 1/40 copper. the Rest of the coin is nickel. What is the fraction of the nickel? Fraction of nickel= 1 ( 1/5 + 1/10 + 1/40) Fraction of nickel= 1 ( 8/40 + 4/40 + 1/40) = 1- 13/40 Can someone help me and tell me how did 1- 13/40 went to 27/40 of the coin is nickel?? How did they came up with the 27??
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OpenStudy (anonymous):
nvm
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