A bag has 2 green marbles and 10 brown marbles. Half of the brown marbles are made of glass. A marble is selected at random from the bag. What is the probability that it is a brown, glass marble?

5/12

Step-by-step explanation:

Total number of marbles:

2 + 10 = 12

Number of brown marbles made of glass:

10/2 = 5

Required probability:

P = 5/12

The sample space is 12. This is because there are 2 green and 10 brown, so 2+10 =12.

Half of the 10 brown marbles are glass, so that would be:

1/2 * 10 = 5 brown, glass marbles.

The probability of picking a brown, glass marble is therefore no of brown, glass marbles/ sample space.

5/12

810$

Step-by-step explanation:

?/1350=3/100

1350*3=4050

4050/100=405

405 per year times 2= 810$