Question

A bag contains 10 marbles: 4 are green, 4 are red,and 2 are blue. Dale chooses a marble random, and without putting it back, chooses another one at random. What is the probability that the first marble is blue and the second one is green?​

Answer 1

Answer: for blue its 1/5 or 2/10 while for its 4/9 for green

Step-by-step explanation: since the bag is full you have all 10 marbles. if you put 10 to the 2 that you have it would leave you with 2/10. now simplify that by dividing it by a number that goes into both. in this case both can be divided by 2 so that leaves 2/2 which is 1 and 10/2 which is 5. 1/5 would be the fraction. now you have 9 marbles after you take one and there are 4 green marbles. since there is no number that can divide into both 4 and 9 evenly we just put it as 4/9 having your answer