20 total marbles....7 are green
probability on first draw is 7/20...and since the marble was not replaced, the probability on the second draw is 6/19. And since they cant happen at the same time, we multiply
7/20 * 6/19 = 42/380 which reduces to 21/190
It equals 0.1365853659
you may round as needed
Answer:
0.80
Step-by-step explanation:
Khan academy
Answer:
3.5
Step-by-step explanation:
these are being decided by 4 everytime, so you can just continue the sequence. 3584,896,224,56,14,3.5
Shh shah ahahaiaia suasion
