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:
c
Step-by-step explanation:
im not completely sure
Answer:
Mean would probably be the best answer
Answer:
140
I am not completely sure but what i did was
56/? = 40/100
56*100
5600/40
140
