Answer:

Step-by-step explanation:
Given [Missing from the question]

Required
Determine the volume
This is calculated as:



Convert to cubic foot [Divide by 28317
]


--- approximated
We have 60% and 85% antifreeze
We need 140 gallons of 70% antifreeze
x + y = 140
.60x + .85y = .70 * 140
X = 84 gallons 60%
Y = 56 gallons 85%
Answer:
1/3
Step-by-step explanation:
as 1/6 for a one and 1/6 for a 2 and 1/6 + 1/6 is 2/6 or 1/3
Answer:

Step-by-step explanation:
One property of parallelogram is that opposite angles have the same measure, so we can write down:

Another property is that two adjacent angles are supplementary (meaning that they add up to 180 degrees). Thus, the following equations are true:

Solve the equations:

To check, add up all 4 angles and check if they sum up to 360 degrees:

And please ignore the fact that I cannot insert the degree sign :(