Answer: 8/7752
Step-by-step explanation:
Since we are told that the bag contains 5 red marbles, 8 white marbles, and 7 blue marbles. The total number fo marbles would be:
= 5 + 8 + 7
= 20 marbles
If 4 marbles out at random, without replacement, the probability that all the marbles are red would be:
= 5/20 × 4/19 × 3/18 × 2/17
= 1/4 × 4/19 × 1/6 × 2/17
= 8/7752
Answer:
B
Step-by-step explanation:
b = number of blue bikes
9 = 9 red bikes
1. "The sum of," this tells us that the answer will be addition based. Based on this information we can solve the question as there is only one answer with an addition symbol (B)
10% of 30 is 3, which means it rained 3 days.
30-3 = 27 days NO rain