document.write( "Question 332483: A mixture of 40 litres of milk and water contains 10% water.How muah water must be added to make 20% in the new mixture? \n" ); document.write( "
Algebra.Com's Answer #238554 by scott8148(6628)\"\" \"About 
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10% of 40L is 4L of water\r
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\n" ); document.write( "\n" ); document.write( "adding w liters , the new mixture is ___ (4 + w) / (40 + w) = 20%\r
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\n" ); document.write( "\n" ); document.write( "4 + w = 8 + .2w\r
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\n" ); document.write( "\n" ); document.write( ".8w = 4 ___ w = 5\r
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\n" ); document.write( "\n" ); document.write( "you will have 9L of water in 45L of mixture , 20%
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