SOLUTION: 18 kg of bronze was made by combinding 12 kg of copper which costs $4/kg with 6kg of tin which costs $10/kg. Find the cost per kg of the mixture. THANK YOU hope you can solve it

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Question 599398: 18 kg of bronze was made by combinding 12 kg of copper which costs $4/kg with 6kg of tin which costs $10/kg. Find the cost per kg of the mixture.
THANK YOU hope you can solve it.

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
18 kg of bronze was made by combining 12 kg of copper which costs $4/kg with 6kg of tin which costs $10/kg.
Find the cost per kg of the mixture.
:
Let c = cost of the mixture
18c = 4(12) + 10(6)
18c = 48 + 60
c = 108/18
c = $6 a kg