document.write( "Question 1183489: Hi
\n" ); document.write( "A store owner has a pound of a mixture of nuts that is 90% peanuts and 10% Brazil nuts by weight. How much weight in Brazil nuts must be added to make the mixture 75% peanuts. \r
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Algebra.Com's Answer #813830 by josgarithmetic(39620)\"\" \"About 
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b mass units of Brazil Nuts to add.\r
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\n" ); document.write( "\n" ); document.write( "Assuming some 100 units of original mixture,
\n" ); document.write( "and understanding the resulting mixture is expected to be 25% Brazil nuts,\r
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\n" ); document.write( "\n" ); document.write( "\"%280.10%2A100%2Bb%29%2F%28b%2B100%29=0.25\"\r
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