Use <u>elimination</u><u>.</u>
Add the equations by columns to get the third equation,
The new equation has only one unknown, so .
Now plug in the fact that into one of the equations and solve for y (I will pick 2nd equation),
.
The value of and .
Hope this helps :)
From the diagram, 6y = 90 [right angle]
y = 90/6 = 15
Also, 5y + 3x + 6y + 90 = 360 [sum of interior angle of a quadrilateral is 360]
5(15) + 3x + 6(15) + 90 = 360
75 + 3x + 90 + 90 = 360
3x = 360 - 255 = 105
x = 105/3 = 35
Therefore, x + y = 35 + 15 = 50.
Answer:
Deductive Reasoning
Step-by-step explanation:
We take the statement as true,
"...all dogs in the kennel are collies..."
we also take
- collies are a type of dog
and
- Rover is a dog
So if Rover is a dog, and all dogs in the kennel are collies, then Rover is a collie, because he is a dog and inside the kennel (after we take the statement all dogs in the kennel are collies).
This type of reasoning follows the Deductive Reasoning pattern, if A = B, and B is C then A is also C.
While inductive takes that if A = B, and C is B just like D is B, then E is also B.
Answer: 15g/mL
Step-by-step explanation:
The absolute value of -81 has the same absolute value as that of 81 because they both have the same distance to 0.