so your finding an average so you already know the alloy that cost 1.70 that there will be more of that
1.60 150 240 4.20 50 210 this your answer 150 of the 1.60 and 50 of the 4.20 this adds up to be 450/200 which equals 2.25
For $4.20 we required 44 ounces.
For $1.70 we require 156 ounces. ;
The mixture consists of 44 ounces of the alloy costing $4.20 per ounce and 156 ounces of the alloy costing $1.70 per ounce. The total weight of the mixture is 200 ounces and its average cost is $2.25 per ounce. The calculations were done using a system of linear equations.
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