You would want to add all of the angles together to find the sum. Set this equal to 360.
2x-9 + 2x-9 + x + x + x = 360
Combine like terms,
7x-18 = 360
Add 18 to both sides,
7x = 378
Divvied both sides by 7,
x = 54
Step-by-step explanation:
a) 2z+3z+4z=180
9z=180
z=20
So,three angles are 40,60 and 80
b) (y+30)+(2y+80)+(y+10)=180
y+30+2y+80+y+10=180
4y+120=180
4y=60
y=15
Three angles are 45,110,25
12/66--->x/22
12/66--->4/22 (almost 4/20 if you know what I mean)
Answer: A
Step-by-step explanation: its because if an atom gains a negative electrons it becomes a negative ion. if it were to loses a electron it would become a positive ion. the other answers are not able to do both
Answer:
<h2>The answer is the first one</h2>
Step-by-step explanation:
Yha it is bad question :)
I hope that is useful for you