document.write( "Question 268539: How many liters of whole milk containing 3% butterfat must be mixed with cream containing 25% butterfat to obtain a mixture of 22 liters of cream containing 20% butterfat?\r
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Algebra.Com's Answer #196776 by CharlesG2(834)![]() ![]() ![]() You can put this solution on YOUR website! How many liters of whole milk containing 3% butterfat must be mixed with cream containing 25% butterfat to obtain a mixture of 22 liters of cream containing 20% butterfat? \n" ); document.write( "Thank You\r \n" ); document.write( "\n" ); document.write( "22 - x = liters of 3% butterfat whole milk \n" ); document.write( "x = liters of 25% butterfat cream (you need more of this to get up to 20%) \n" ); document.write( "% times qty mixture A + % times qty mixture B = % times qty mixture c \n" ); document.write( "(qty = quantity)\r \n" ); document.write( "\n" ); document.write( "0.03 * (22-x) + 0.25x = 0.20 * 22 \n" ); document.write( "0.66 - 0.03x + 0.25x = 4.4 \n" ); document.write( "0.66 + 0.22x = 4.4 \n" ); document.write( "0.22x = 3.74 \n" ); document.write( "x = 17 \n" ); document.write( "22-x = 5\r \n" ); document.write( "\n" ); document.write( "0.03 * 5 + 0.25 * 17 = 0.15 + 4.25 = 4.4 = 0.20 * 22 = 4.4\r \n" ); document.write( "\n" ); document.write( "you need 5 liters of the 3% \n" ); document.write( "you need 17 liters of the 25% \n" ); document.write( " \n" ); document.write( " |