document.write( "Question 1155684: Find how many quarts of 6% butterfat milk and 3% butterfat milk should be mixed to yield 45 quarts of 4% butterfat milk. \n" ); document.write( "

Algebra.Com's Answer #778323 by josgarithmetic(39617) $\"\"$ $\"About$

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3%, 4%, 6%\r
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\n" ); document.write( "\n" ); document.write( "4% cuts the lowest and the highest concentration into three parts; and is one of those parts above the 3%, or one-third the way from 3 to 6. Two-thirds of the 45 quarts should be of the 3% butterfat, and one-third of the 45 quarts should be of the 6% butterfat.\r
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\n" ); document.write( "\n" ); document.write( "30 quarts of the 3%
\n" ); document.write( "15 quarts of the 6%\r
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\n" ); document.write( "\n" ); document.write( "--------------Another Method----------------\r
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\n" ); document.write( "\n" ); document.write( "v, how much of 6%
\n" ); document.write( "45-v, how much of 3%\r
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\n" ); document.write( "\n" ); document.write( " $\"3%2845-v%29%2B6v=4%2A45\"$ -----to account for just the butterfat by percentages
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\n" ); document.write( " $\"3%2A45-3v%2B6v=4%2A45\"$
\n" ); document.write( " $\"6v-3v%2B3%2A45=4%2A45\"$
\n" ); document.write( " $\"v%286-3%29=4%2A45-3%2A45\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28v=45%28%284-3%29%2F%286-3%29%29%29\"$ -------Same as $\"highlight%28v=45%281%2F3%29=15%29\"$ \n" ); document.write( "

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