Parallel lines has equal slopes.
Equation of the line 2x + y + 1 = 0 in slope intercept form is y = -2x - 1 with slope of -2. Therefore, the slope is -2.
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.
Answer:
4. 1/2
5. 9/1
Step-by-step explanation:
4. 2/4 simplifies to 1/2
5. 18/2 simplifies to 9/1
The LCM is 24.
1/12=2/24
5/8=15/24