Answer:
solvable
Step-by-step explanation:
The coefficients of x and y have different ratios, so the equations are solvable.
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The solution is (x, y) = (7/15, 1/10).
Answer:
a = 5
Step-by-step explanation:
a +a+4 + 2a-3 = 21
4a +1 =21
4a = 20
a = 5
Answer:
no
they aren't
rhe first one is equal to
14- 3x
Answer:
A. No, it does not represent a proportional relationship.
B. Yes, it represents a proportional relationship.
C. No, it does not represent a proportional relationship.
Step-by-step explanation:
think of the increase for X and Y, if they increase at the same rate for both and and for X to Y, they have a proportional relationship.
Answer: C) Always false
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Explanation:
A linear pair of angles satisfy these two requirements (both must be true)
- The angles are adjacent
- The angles are supplementary, ie they add to 180.
While it is possible for vertical angles to be supplementary (they both are 90), it is not possible for vertical angles to be adjacent. This is because vertical angles do not share a common side. Vertical angles are opposite one another, so they are as far from adjacent as possible, while still sharing a common vertex point however.
This means that vertical angles are never considered to be a linear pair. Put another way, you can ask yourself "can vertical angles form a straight line?". The answer is "they can never form a straight line". Again the fact they aren't adjacent is the reason why.