Answer: x=6
The two angles shown in each are complementary because they add up to 90°.
10 & 12 would be supplementary to one another because they would add up to 180°.
Step-by-step explanation:
We know that on both 10 & 12 the angles add up to equal 90° so...
10. 8x+7x=90
15x=90
x=6
12. it's the same in pic as 10
The two angles shown in each are complementary because they add up to 90°.
10 & 12 would be supplementary to one another because they would add up to 180°.
For this case we have the following system of two equations with two unknowns:
Adding both equations we have to eliminate the variable "x":
Adding common terms, keeping in mind that different signs are subtracted and the sign of the major is placed:
Answer:
Option A
Answer:
79
Step-by-step explanation:
equation:
18x - 8 + 11x = 20x +19
Add like terms:
29x - 8 = 20x + 19
add 8 to both sides:
29x = 20x + 27
subtract 20x from btoh side:
9x = 27
Divide both sides by 9:
x = 3
substitute x into the equation for SU
SU = 20(3) + 19
Solve:
SU = 79
Answer: check the attached graph for the answer
Step-by-step explanation: Please find the attached file for the solution
Answer:
Step-by-step explanation:
2x+4 = 7x-1
4+1 = 7x - 2x
5 = 5x
x = 5/5
x = 1
hope this helps
