document.write( "Question 233503: regular milk has 4% butterfat. how many litres of regular milk must be mixed with 40L of milk with 1% butterfat to have milk with 2% butterfat?\r
\n" ); document.write( "\n" ); document.write( "Does someone know how to turn this into an equation? I would really appreciate it. thank you
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Algebra.Com's Answer #172338 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
regular milk has 4% butterfat. how many litres of regular milk must be mixed with 40L of milk with 1% butterfat to have milk with 2% butterfat?
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\n" ); document.write( "Equation:
\n" ); document.write( "fat + fat = fat
\n" ); document.write( "0.04x + 0.01(40) = 0.02(x+40)
\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "4x + 40 = 2x + 80
\n" ); document.write( "2x = 40
\n" ); document.write( "x = 20L (amount of regular mild needed in the mixture)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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