I can't see the whole problem
Yea because the rationl numbers are diffrent form as a finite set
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
Answer:
23
Step-by-step explanation: Substitute 1 for p & 7 for q
7 − 5p + 3q
7 - 5(1) + 3(7)
7 - 5 + 21
7 + 16
23
Hope this helps you!!! :)