jasminer257
17.05.2021 •
Mathematics
If a silver alloy that costs $4.50 an ounce is
going to be mixed with 10 ounces of a silver
alloy that costs $8 an ounce to make a mixture
that costs $7 an ounce, how many ounces of
the $4.50 an ounce alloy must be used?
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