College Pre Calculus
posted by Anonymous .
anne and nancy use a metal alloy that is 19.3% copper to make jewelry. how many ounces of a 19% alloy must be mixed with a 20% alloy to form 110 ounces of the desired alloy?

College Pre Calculus 
bobpursley
110*.193=X*.19+(110x).20
solve for X.
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