Answer:
A= 30, B= 20, C= 50
Step-by-step explanation:
Just took test
Step-by-step explanation:
(3 + 4) 9 + 3 = (7)9 +3
= 63 + 3
= 66
Answer:
7 - x = 20 hope this helps!!
Step-by-step explanation:
can Iget brainliest?? ;P
The two angles form a straight line which is equal to 180 degrees. This makes the angles supplemtary.
To find x, add the two angles together to equal 180:
7x + x+20 = 180
Combine like terms:
8x + 20 = 180
Subtract 20 from both sides:
8x = 160
Divide both sides by 8:
X = 20
