Question

Geomtry year 9
Answer 2 questions please

Answer 1

1) x/(x+6)=4/20

20x = 4(x+6)

20x=4x+24

20x-4x = 24

x=24/16 =1,5

2) 13/(13+y)=10/30

10(13+y)=13*30

130+10y=390

10y=390-130

y=26

Explanation: