She has distributed the bracket incorrectly
(64 + 5) - 0.2(- 20 + 10)
=
(69) - 0.2 (- 10)
=34.5 + 2
= 36.5
Set them equal to each other and solve
3x + 39 = 4x +34
-x=-5
X=5
Plug it in
3(5) + 39 = 54
4(5) +34 = 54
For the final angle ,
54 + 54 = 108
180-108 =72
The angle measures are 54,54, and 72
Answer:
20%
Step-by-step explanation:
4/5=.80
1-.80=.20
.20=20%
Answer: question 1: 20 question 2: 21 question 3: 17, 19, 23
Step-by-step explanation:
X equals to 518/3 which equals to 172.6