Question 1108807
x quarts of the 5% fat
120-x quarts of 1% fat


{{{5x+1(120-x)=4*120}}}

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{{{5x+120-x=480}}}
{{{4x=480-120}}}
{{{x=120-30}}}
{{{highlight(x=90)}}}-------quarts of the 5% butterfat milk

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