document.write( "Question 162391: A container is partly filled with 12 liters of whole milk containing 4% butterfat. How much 1% milk must be added to get a mixture that is 2% butterfat? \n" ); document.write( "
Algebra.Com's Answer #119686 by ankor@dixie-net.com(22740)\"\" \"About 
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A container is partly filled with 12 liters of whole milk containing 4% butterfat.
\n" ); document.write( " How much 1% milk must be added to get a mixture that is 2% butterfat?
\n" ); document.write( ":
\n" ); document.write( "Let x = amt of 1% milk
\n" ); document.write( "then
\n" ); document.write( "(x+12) = resulting amt
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\n" ); document.write( "Write an \"amt of butterfat\" equation
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\n" ); document.write( ".01x + .04(12) = .02(x+12)
\n" ); document.write( ":
\n" ); document.write( ".01x + .48 = .02x + .24
\n" ); document.write( ":
\n" ); document.write( ".48 - .24 = .02x - .01x
\n" ); document.write( ":
\n" ); document.write( ".24 = .01x
\n" ); document.write( "x = \".24%2F.01\"
\n" ); document.write( "x = 24 liters of 1% milk required
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\n" ); document.write( "Check solution in the original equation:
\n" ); document.write( ".01(24) + .04(12) = .02(24+12)
\n" ); document.write( ".24 + .48 = .02(36
\n" ); document.write( ".72 = .72; confirms our solution \n" ); document.write( "
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