I think it would be D that’s what I think
Answer:
50%
Step-by-step explanation:
You can use this formula

a and b are the solutions to the equation
Answer:
AB = 20 metres
BC = 60 metres
Step-by-step explanation:
Let AB = x
Then, BC = 3x
<u><em>Condition:</em></u>
=> x+3x = 80
=> 4x = 80
Dividing both sides by 4
=> x = 20
So,
AB = 20 metres
BC = 3(20)
BC = 60 metres