Answer:
20
Step-by-step explanation:
3x + x + 100 = 180 (sum of angles on a straight line)
4x = 180-100
4x=80
divide both sides by 4
x=20
Step-by-step explanation:
.......................
It would b 5 !!!!!!!!!!!!!!!!!!!!
Answer:
60
Step-by-step explanation:
Divide the number of questions answered correctly by his percentage
51 / 85 = 0.6
Now multiply that answer by 100 to see how many questions are on the quiz
0.6 x 100 = 60
Check your work by dividing that number by the number he answered correctly
51 / 60 = 0.85
Answer:
y = 
- 1
Step-by-step explanation:
y - y1 = m (x - x1)
y + 5 = (x + 12)
y + 5 = x + 
y + 5 = x + 4
y = x - 1
Hope this was helpful :)
