document.write( "Question 741179: a 50-gallon barrel of milk is 6 % butterfat. how much skim milk( no butter fat) should be mixed tot make milk that is 3% butterfat? \n" ); document.write( "

Algebra.Com's Answer #451879 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+x+\"$ = gallons of skim milk to be added
\n" ); document.write( " $\"+.06%2A50+=+3+\"$ = gallons of butterfat in 50 gallon barrel
\n" ); document.write( "---------------
\n" ); document.write( " $\"+3+%2F+%28+50+%2B+x+%29+=+.03+\"$
\n" ); document.write( " $\"+3+=+.03%2A%28+50+%2B+x+%29+\"$
\n" ); document.write( " $\"+3+=+1.5+%2B+.03x+\"$
\n" ); document.write( " $\"+.03x+=+1.5+\"$
\n" ); document.write( " $\"+x+=+50+\"$
\n" ); document.write( "50 gallons of skim milk must be added
\n" ); document.write( "check:
\n" ); document.write( " $\"+3+%2F+%28+50+%2B+x+%29+=+.03+\"$
\n" ); document.write( " $\"+3+%2F+%28+50+%2B+50+%29+=+.03+\"$
\n" ); document.write( " $\"+3%2F100+=+.03+\"$
\n" ); document.write( " $\"+.03+=+.03+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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