document.write( "Question 353765: .............Lead....Zink....Copper
\n" ); document.write( "Alloy A..40%...30%...30%
\n" ); document.write( "Alloy B..20%...30%...50%
\n" ); document.write( "Alloy C..........10%...90%\r
\n" ); document.write( "\n" ); document.write( "How many grams of each alloys A, B, and C must be mixed to get 325g of an alloy that is 15.2% lead, 37.2% zink, and 47.6% copper?\r
\n" ); document.write( "\n" ); document.write( "I've tried this using the Matrix, and the inverse Matrix, and keep coming up with negitives on some alloys.\r
\n" ); document.write( "\n" ); document.write( "Thanks for your help.\r
\n" ); document.write( "\n" ); document.write( "Neil
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Algebra.Com's Answer #252875 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
(40)(A) + (20)(B) + (0)(C) = (15.2)(325)\r
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\n" ); document.write( "\n" ); document.write( "(30)(A) + (30)(B) + (10)(C) = (37.2)(325)\r
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\n" ); document.write( "\n" ); document.write( "(30)(A) + (50)(B) + (90)(C) = (47.6)(325)
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