SOLUTION: Coffee at $12 per kg is mixed with other coffee $16 per kg in ratio of 1:3. What is the coast of ONE KILOGRAM of the mixture?

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Question 983394: Coffee at $12 per kg is mixed with other coffee $16 per kg in ratio of 1:3. What is the coast of ONE KILOGRAM of the mixture?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Your question was adjusted a little.

One part to three parts, make FOUR parts.
The mixture is 1%2F4 kg of the $12per kg coffee and 3%2F4 kg of the $16 kg coffee.

The cost is 12%2A%281%2F4%29%2B16%2A%283%2F4%29
3%2B4%2A3
3%2B12
highlight%2815%2Adollars%29.