document.write( "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? \n" ); document.write( "
Algebra.Com's Answer #556438 by JulietG(1812)\"\" \"About 
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90 @15 = 1350
\n" ); document.write( "10 @12 = 120
\n" ); document.write( "1350 + 120 = 1470
\n" ); document.write( "1470/100 = 14.70
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