There are Year 8 pupils and y Year 9 pupils. If 10 pupils from each year group left the school, the ratio of pupils in Year 8 to Year 9 would be 2:5.If 8 pupils were added to each year group, the ratio would be 1 : 2. Express . pls help me

sorry, i can't understand your question. will later if you describe more clearly!

: )

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

13cm

step-by-step explanation:

(apex)