SOLUTION: a bakery is trying to make a batch of cake mix that requires they use 20 liters of milk with 4% butterfat. They currently have one milk with 7% butterfat, and one milk with 3% butt

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: a bakery is trying to make a batch of cake mix that requires they use 20 liters of milk with 4% butterfat. They currently have one milk with 7% butterfat, and one milk with 3% butt      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1130045: a bakery is trying to make a batch of cake mix that requires they use 20 liters of milk with 4% butterfat. They currently have one milk with 7% butterfat, and one milk with 3% butterfat. How many liters of each of the milks that they currently have would they need to mix in order to obtain the necessary 20 liters of 4% butterfat milk?
Answer by josgarithmetic(39627) About Me  (Show Source):
You can put this solution on YOUR website!
butterfat%2Fmilk=0.04

x liters of 7% butterfat
20-x liters of 3% butterfat

%280.07x%2B0.03%2820-x%29%29%2F20=0.04
.
.
x=5

15 liters of the 3% butterfat milk
5 liters of the 7% butterfat milk