C, D, E, and G are FOUR points.
Answer:
Step-by-step explanation:
POINTS:
- Out of every 15 students, 6 were successful in the task.
- The professors' success rate is 140% of the students' success rate.
j
Answer:
![x=7](https://tex.z-dn.net/?f=x%3D7)
Step-by-step explanation:
we have
![3x-\frac{1}{9}y=18](https://tex.z-dn.net/?f=3x-%5Cfrac%7B1%7D%7B9%7Dy%3D18)
Substitute the value of y=27 in the equation and find the value of x
so
![3x-\frac{1}{9}(27)=18](https://tex.z-dn.net/?f=3x-%5Cfrac%7B1%7D%7B9%7D%2827%29%3D18)
![3x-3=18](https://tex.z-dn.net/?f=3x-3%3D18)
![3x=18+3](https://tex.z-dn.net/?f=3x%3D18%2B3)
![3x=21](https://tex.z-dn.net/?f=3x%3D21)
![x=7](https://tex.z-dn.net/?f=x%3D7)
Answer:
3x-6
Step-by-step explanation:
Answer:
Percentage score will be 83.33 %
Step-by-step explanation:
We have given Antonette gets 70 % on 10 problem test
Let consider here here total problem = total marks
So marks get 10 10 problem test = 10×0.7 = 7
Marks get in 20 problem test = 20×0.8 = 16
And marks get in 30 problem test = 30×0.9 = 27
Now total marks get get by Antonette = 7 +16 + 27 = 50
And total marks = 60
So percentage score of Antonette
%