Answer:
60 degrees
Step-by-step explanation:
a+b+c= 180 degrees therefore 5x + x + 3x = 9x
9x=180 (divide) --> x=20
since c = 3x substitute in 20 for x --> 3(20) = 60 degrees for angle c
Answer:
12-21+5=-4
Step-by-step explanation:
12-21=-9
-9+5=-4
Answer:
2/7
Step-by-step explanation:
For the president position, there are 4 females from a total of 7 people.
For the vice president position, there are 3 males from 6 people left over.
So the probability is 4/7 × 3/6 = 2/7.
2x - (3/4) = (15/4)
We need to get x by itself. First add 3/4 to both sides.
2x = 18/4
Now divide both sides by 2
x = 18/8 or 9/4
I can answer this, but it is all based on assuming that both parts of that line are equal, so if you know otherwise then please don't use this answer.
3x + 5 = 5x - 7
- 3x
5 = 2x - 7
+ 7
12 = 2x
÷ 2
6 = x
So you get x as 6, I hope this helps!