Answer:
x = 1
Step-by-step explanation:
3x + 1/2 (2x + 6) = 6x + 1
3x + x + 3 = 6x + 1
4x + 3 = 6x + 1
2 = 2x
x = 1
Answer:
20 quarts of 6% butterfat milk and 40 quarts of 3% butterfat milk is used to make 60 quarts of 4% butterfat milk.
Step-by-step explanation:
We are given the following in the question:
Let x quarts of 6% butterfat milk be used and y quarts of 3% butterfat milk be used to make 60 quarts of 4% butterfat milk.
Thus, we can write the equation:

Total amount of 3% butterfat milk = 60
Thus, we can write the equation:

Solving the two equation, we get,

Thus, 20 quarts of 6% butterfat milk and 40 quarts of 3% butterfat milk is used to make 60 quarts of 4% butterfat milk.
0.85 is between 0.8 and 0.9