document.write( "Question 903350: To make low-fat cottage cheese, milk containing 4% butterfat is mixed with milk containing 1% butterfat to obtain 18 gallons of a mixture containing 2% butterfat. How many gallons of each milk must be used? \n" ); document.write( "
Algebra.Com's Answer #547920 by josgarithmetic(39617)\"\" \"About 
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\"system%28%281%2Au%2B4%2Av%29%2F18=2%2Cu%2Bv=18%29\"\r
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