Answer:
57
Step-by-step explanation:
Firstly, we will need to calculate what x is.
To calculate this, the important property of the parallelogram to use is that adjacent angles are supplementary.
This means A and B are supplementary while B and C are also supplementary
what we are trying to say is that they add up to be 180
Thus,
5x + 18 + 3x -6 = 180
8x +12 = 180
8x = 180-12
8x = 168
x = 168/8
x = 21
Thus, the measure of angle B is 3x-6 = 3(21) -6 = 63-6 = 57
Now, another important property of parallelograms is that opposite angles are equal. This means that angle B= C = 57
D. You need Ax+By=C where all of A,B,C are integers
Answer:
6
Step-by-step explanation:
she would need 3 packs to give each student 1 pencil, so she would have to double that to give each student 2 pencils.
Hey there!
4x - 9 = 15
ADD 9 to BOTH SIDES
4x - 9 + 9 = 15 + 9
CANCEL out: -9 + 9 because it gives you 0
KEEP: 15 + 9 because it help solve for the x-value.
NEW EQUATION: 4x = 15 + 9
SIMPLIFY IT!
4x = 24
DIVIDE 4 to BOTH SIDES
4x/4 = 24/4
CANCEL out: 4/4 because it gives you 1
KEEP: 24/4 because it gives you the answer of the x-value
NEW EQUATION: x = 24/4
SIMPLIFY IT!
x = 6
Therefore, your answer is: x = 6 (Option D.)
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)