That's all I could get... 10th graders forget sorry I hope this helps
A drawer contains five pairs of socks that are brown, black, white, red, and blue. Claude takes the red socks out of the drawer. What is the probability of Claude choosing the red socks on his first pick?
Answer: 1/25
Answer:
7x + 3y = - 1
x + y = - 3
Find what y (Or x, but make sure you find the same variable for both equations) is:
3y = - 7x - 1
y = - 7/3x - 1/3
y = - x - 3
Substitute:
- 7/3x - 1/3 = - x - 3
Solve for x (Or y, depending on which one you used):
4/3x = 2 2/3
x = 2
Plug x (Or y) into one of the equations:
2 + y = - 3
y = - 5
Answer: x = 2, y = -5
