SOLUTION: If 90% of James compact discs cost $15 each and if 10% if his compact discs cost 12$ each, what is the average arithmetic mean cost per disc?
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Question 916966: If 90% of James compact discs cost $15 each and if 10% if his compact discs cost 12$ each, what is the average arithmetic mean cost per disc? Answer by JulietG(1812) (Show Source):
