The events are independent, because the events do not affect each other.
You would basically go back and trace all your steps, that's what I do. And if your answer seems reasonable then you have the right answer but if your work doesn't match the answer than you've messed up.
I hope I helped if I did like my answer and comment down below thx
Answer:
x= 2 1/2
Step-by-step explanation:
Im not too sharp at math but hope this helps!
Step-By-Step:
1. 3 times 10k=2 times 9
2. 3 times 10k=18
3. 3 times 10k/30 = 18/30
4. k=3/5 or 0.6