Answer:
200
Step-by-step explanation:
25 percent is known to be 1/4 of a number, so if 50 teachers represent 1/4 of all the teachers, that means that in order to get a full number, we must multiple 50 by 4 in order to get all 100% of the teachers.
By doing 50x4, we can conclude that 200 teachers teach at the school (aka 100% of all teachers)
(180-144)° + 3x + 90° = 180°
36 + 3x + 90° = 180°
x = 18°
Answer:
1.2
Step-by-step explanation:
The x in each point is 3 so we can leave that alone.
Then we subtract.
2.6 - 1.4 = 1.2
Answer:
Answers and steps are in picture. Pardon bad drawing.
4(x - 7) + 12 = 20
4(x) - 4(7) + 12 = 20
4x - 28 + 12 = 20
4x - 16 = 20
+ 16 + 16
4x = 36
4 4
x = 9
