document.write( "Question 242150: How many gallons of cream that is 30% butterfat must be mixed with milk that is 3% butterfat to make 45 gallons that are 12% butterfat?\r
\n" ); document.write( "\n" ); document.write( "cream X .30 .30x
\n" ); document.write( "milk X-45 .03 .03x -1.35
\n" ); document.write( "final solution 45 .12 5.40
\n" ); document.write( ".30x + .03x -1.35 = 5.40
\n" ); document.write( ".33x = 6.75
\n" ); document.write( "x=
\n" ); document.write( "this is as far as I can get that makes sense to me. Can you tell me where I am going wrong or what I do next?
\n" ); document.write( "Thank you. \n" ); document.write( "

Algebra.Com's Answer #177275 by Alan3354(69443) $\"\"$ $\"About$

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How many gallons of cream that is 30% butterfat must be mixed with milk that is 3% butterfat to make 45 gallons that are 12% butterfat?
\n" ); document.write( "-----------
\n" ); document.write( "m + c = 45
\n" ); document.write( "0.03m + 0.3c = 45*0.12 = 5.4
\n" ); document.write( "-----------
\n" ); document.write( "m + c = 45
\n" ); document.write( "3m + 30c = 540
\n" ); document.write( "m + 10c = 180
\n" ); document.write( "m + c = 45
\n" ); document.write( "------------- Subtract
\n" ); document.write( "9c = 135
\n" ); document.write( "c = 15
\n" ); document.write( "m = 30 \n" ); document.write( "

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