Question

Find how many quarts of 4% low fat milk should be mixed to yield 60 quarts of 3 % low fat milk.
-The mixture should contain---quarts of the 4% lowfat milk.
-The mixture should contain--- quarts of the 1% low fat milk.
Any help???? THANK YOU:)

Answer 1

x = 4% low fat milk
y = 100% water

Total amount of liquid in quarts:
x + y = 60

Percentage of low fat milk equation:
.04x + 0y = .03(60)

Answer 2

So solve this system:

x + y = 60
.04x + 0y = 1.8

When you solve the system you get

x = 45
y = 15

So the amount of 4% low fat milk that should be mixed is 45 quarts

Answer 3

I didn't read anything about 1% lowfat milk in the problem. So if you did not post the problem completely, you should do so.