Step-by-step explanation:
Given data
2 green,
9 brown,
7 yellow, and
4 blue marbles.
Sample space S = 2+9+7+4= 22
The probability of picking a ball without replacement
Probability of picking each ball
Pr(green) = 2/22= 1/11
Pr(brown ) = 9/21
Pr(yellow) = 7/20
Pr(blue) = 4/19
Probability of picking yellow then another yellow
P(yellow, then yellow)
=(7/22)*(6/21)= 42/462
=1/11
A. 1/11
Answer:
132,600
Step-by-step explanation:
Since we have a total of 52 runners and 3 spots for the top. We can find how many ways they can finish with simple multiplication.
For the first spot there can be a possibility of 52 people.
For the second spot there can be a possibility of 51 people since there will be somebody in the first spot.
For the third spot there can be a possibility of 50 people since both the first and second spot are already taken.
Total number of ways = 52 x 51 x 50
Total number of way = 132,600
So there are 132,600 ways that 52 runners can finish first, second, and third in the race.
Answer:
b=2
Step-by-step explanation:
4/5 would be 32/40 in simplest form.
To find the simplest form of 32/40 you would have to find the least common multiple of 32 and 40.
You can keep on adding until you find a common multiple.
32 64 96 128 160
40 80 120 160
After you find the least common multiple (160), you divide 32 and 40 by 160.
160÷32=5
160÷40=4
4 would be your numerator and 5 would be the denominator. So, you would get the fraction 4/5 as your answer.
Answer:
t = 5.382
Step-by-step explanation:
113455/t = 2500
t = 13455/2500
t = 5.382
Hope it helps ⚜