document.write( "Question 836365: In a 40 -litre mixture of milk and water,the water is 10%.How much water is to be added to get a new mixture in which the water is 20%. \n" ); document.write( "
Algebra.Com's Answer #504135 by josgarithmetic(39617)\"\" \"About 
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w is how much water to add to increase the \"concentration of water\" \r
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\n" ); document.write( "\n" ); document.write( "\"%2840%2A10%2B100%2Aw%29%2F%2840%2Bw%29=20\"
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\n" ); document.write( "\n" ); document.write( "Water in mixtures or solutions is usually treated as the carrier, and not as one of the materials to be referenced for concentration. This exercise reverses that idea. \r
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