This may be the answer,hope it helps
Answer:
0.5
Step-by-step explanation:
Let D be the event of selecting a marble with dots.
Let P be the event of selecting a purple marble.
The probability of selecting a marble with dots, P(D)=0.2
The probability of selecting a marble that is both purple and has dots, 
We want to determine the probability of selecting a purple marble given that the marble has dots on it, P(P|D)
By the definition of conditional probability:

The probability of selecting a purple marble given that the marble has dots on it is 0.5.
Answer:
4. x=14.1 mi 6.x=8r3 km
Step-by-step explanation:
13x = 39 can replace 3x + 5y = 59 in the original system and still produce the same solution.
Answer:

Step-by-step explanation:
