It’s 12/16 and 8/12 because if you subtract 12/16 with 4/4 than you’ll get 8/12
You can combine like terms form both sides in this problem.
3x = 15
divide by 3 on both sides
x = 5
9x + 3 = 7x +19
2x + 3 = 19
2x = 16
x = 8
So, x (8) is the number of chairs in each row with these setups.
9(8) + 3 = 75
There are 75 chairs total
Answer:
Step-by-step explanation:
This is a cyclic quadrilateral.
It has a property of opposite angles being supplementary.
<u>A and C are supplementary angles:</u>
- 3x + 6 + x + 2 = 180
- 4x + 8 = 180
- 4x = 172
- x = 43
m∠A = 3x + 6 = 3*43+ 6 = 135°