Problema Solution
A dairy needs 360 gallons of milk containing 6% butterfat. How many gallons each of milk containing 7% butterfat and milk containing 3% butterfat must be used to obtain the desired 360 gallons?
Answer provided by our tutors
let
x = gal of the 7% butterfat milk
y = gal of the 3% butterfat milk
A dairy needs 360 gallons of milk containing 6% butterfat:
x + y = 360
0.07x + 0.03y = 0.06*360
by solving the above system of equations:
x = 270 gal
y = 90 gal
click here to see the step by step solution of the system of equations:
270 gallons of the 7% butterfat milk and 90 gallons of the 3% butterfat milk should be used.