SOLUTION: How many kilograms (kg) of a 15% copper alloy must be melted with a 45% copper alloy to obtain 60 kilograms of a 32% copper alloy?
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Question 330203: How many kilograms (kg) of a 15% copper alloy must be melted with a 45% copper alloy to obtain 60 kilograms of a 32% copper alloy?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A be the amount of 15% alloy, B the amount of 45% alloy.
1.
2.
Subtract eq. 1 from eq. 2,
Then from eq. 1,
.
.
.
26 kilos of 15% alloy and 34 kilos of 45% alloy.
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