Problema Solution
The dairy man has milk with 5% butterfat and cream with 20% butterfat. How much of each ingredient must be mixed to make 30 gallons with 6% butterfat?
Answer provided by our tutors
let
x = gal of the milk with 5% butterfat
y = gal of the cream with 20% butterfat
the mix is 30 gallons with 6% butterfat:
x + y = 30
0.05x + 0.20y = 0.06*30
by solving the above system of equations we find
x = 28 gal
y = 2 gal
click here to see the step by step solution of the system of equations
28 gallons of the milk with 5% butterfat and 2 gallons of the cream with 20% butterfat must be mixed.