SOLUTION: 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?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: 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?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

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?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = gallons of skim milk to be added
+.06%2A50+=+3+ = gallons of butterfat in 50 gallon barrel
---------------
+3+%2F+%28+50+%2B+x+%29+=+.03+
+3+=+.03%2A%28+50+%2B+x+%29+
+3+=+1.5+%2B+.03x+
+.03x+=+1.5+
+x+=+50+
50 gallons of skim milk must be added
check:
+3+%2F+%28+50+%2B+x+%29+=+.03+
+3+%2F+%28+50+%2B+50+%29+=+.03+
+3%2F100+=+.03+
+.03+=+.03+
OK