Answer:
For 20 tickets its 35 dollars
For 50 tickets its 87.50 dollars
For r tickets its 140 dollars
Step-by-step explanation:
1: -60
2: -10
3: 400
4: -15
5: 18
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:
5n+2
Step-by-step explanation:
i hope this helps
