document.write( "Question 305750: Cream is approximately 22% butterfat. How many gallons of cream must be mixed with milk testing at 2% butterfat to get 90 gallons of milk containing 4% butterfat?
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\n" ); document.write( "7 gallons
\n" ); document.write( "8 gallons
\n" ); document.write( "9 gallons
\n" ); document.write( "11 gallons
\n" ); document.write( "12 gallons
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Algebra.Com's Answer #218866 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Let represent the number of gallons of cream required. Then represents the amount of 2% milk you need to add to get a total of 90 gallons.\r
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\n" ); document.write( "\n" ); document.write( "There are gallons of pure butterfat in the cream and gallons of pure butterfat in the 2% milk, and once you have 90 gallons of 4% milk you will have 90 times 0.04 = 3.6 gallons of pure butterfat.\r
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\n" ); document.write( "\n" ); document.write( "Just solve for \r
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\n" ); document.write( "\n" ); document.write( "John
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