Step-by-step explanation:
3x - 2y = 12
Substituting y = 9, we find:

Similarly, solving for point B (4, __) =B (4, 0)
Answer:
Step-by-step explanation:
and also you are diviing the numbers then subtracting 9
Class of students - number of students that are boys = numbers of students that are girls
30 - 13 = 17
To change the number of students that are girls into percentage...
17/1 * 1/100 = 17/100
17/100 in a % form = 17%
The percentage of girls in the class is 17%
The answer is 3 1/3 + 2 1/3 = 5 2/3
Answer: 3/7
Step-by-step explanation: