You need to include a picture for any answers. I'll gladly help you out once there's an image.
Answer probability of one girl is 1 in 2 or 1/2 so multiply probability 5 times.
(1/2)(1/2)(1/2)(1/2)(1/2) = 1/32
Answer:
Putting the value of x= 2 in the first equation,
6(2)+y= 17
y= 17-12 = 5
This value is same as the value for y given in the question.
Therefore, it satisfies the equation.
Again, putting the value of x= 2 in the second equation,
3(2)+14y= 16
14y= 16-6 = 10
y= 10/14 = 5/7
It doesn't satisfies the 2nd equation
Hence, (2,5) is not the solution to this system.
7, 14 would be it but you have to divide the whole equation by 2 to get the y alone
