Answer:
The solution is

Step-by-step explanation:
The given equations are

and

The graph of the two equations intersects at
as show in the graph in the attachment.
The point of intersection of the two graphs is the solution to system of equations.
Hence the solution is

Number of red marbles in bag = r. b = 10-rProbability of first marble being red: r/10Second marble being red: (r-1)/9total probability = 2/15 = (r-1)*r/90r = 4b = 6
Answer:
a/8 or a over 8 hope this helps
Step-by-step explanation: