There are 5 blue marbles, 2 red marbles, 1 orange marble, and 2 green marbles in a bag. Once a marble is drawn, it is replaced. Find the probability of selecting a blue marble, and then an orange marble.

1/20

Step-by-step explanation:

5 blue marbles, 2 red marbles, 1 orange marble, and 2 green marbles = 10 marbles

P( blue) = blue marbles / total marbles

             =5/10 = 1/2

We replace the marble

5 blue marbles, 2 red marbles, 1 orange marble, and 2 green marbles = 10 marbles

P(orange) = orange marbles / total

                 = 1/10

P(blue, replace, orange) = 1/2 * 1/10

                                         = 1/20

thats not a system of equations, that is a solution