Answer:
2/65 = 4 teachers for 130
3/100 = 9 teachers for 300
2/55 = 8 teachers for 220
3/85 = 6 teachers for 170
Step-by-step explanation:
The answer to your problem, I’m pretty sure the second one, I’m not to sure tho!
Answer:
B
Step-by-step explanation:
Answer:
x = 2
y = -3
z = 4
( 2 , -3, 4 )
Step-by-step explanation:
x + y + z = 3 ---- i
x – y =5 ---- ii
y - z = -7 ---- iii
ii + iii
x - z = -2 ---- iv
i + ii
2x + z = 8 --- v
iv + v
3x = 6
x = 2
x=2 substitute for v
z = 4
x =2 substitute for ii
y = -3
