Mathematics
Grade9
Easy
Question
Solve for x. Explain your steps.
GIVEN:
- 11
- 12
- 10
- 13
Hint:
Use the properties .
Angle Addition Postulate
Addition Property
Division Property
The correct answer is: 11
Given
Step 1 : 6x + (3x – 9) = 90 (Angle Addition Postulate)
9x = 99 (Addition Property)
x = 11 (Division Property)
Simply solve for X . you cam get your answer . Sum of angles = 90 .
Solve it for X .