SOLUTION: A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $4.50 per ounce should be mixed with one that costs $9.00 per ounc

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Question 1199892: A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $4.50 per ounce should be mixed with one that costs $9.00 per ounce to make a new 30-ounce alloy that costs $8.10 per ounce?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Alloys costing $4.5 and $9 per ounce
Mixture costing$8.10 per ounce, amount 30 ounces

h, how much of the $9 per ounce to use
30-h, how much $4.5 per ounce to use

4.5%2830-h%29%2B9h=%288.1%29%2830%29-----solve for h,...