The equation to solve this problem is 2x-5=8. The answer is 13/2 or 6.5.
For Problem #2, the second one should be 6x+4x+12, and the third one should be 10x+12
Answer:
Explanation:
opposite angles in a quadrilateral sum up to 180°
total interior angles in a quadrilateral is 360°
solve for x:
x - 2 + x + 2 = 180°
2x = 180°
x = 90°
solve for each angle:
1st
x + 2
90° + 2 = 92°
2nd
x - 2
90° - 2 = 88°
3rd
x - 10
90° - 10° = 80°
4th
360° - 80° - 88° - 92° = 100°
89% as a fraction would be 89/100 since it can not be reduced
Answer:
Arithmetic sequence
Step-by-step explanation:
Each term is the previous term +4 so it is an arithmetic sequence
