Answer:
3(1x-4) and (2x+1)-(6+6)
Step-by-step explanation:
Answer:
1 / 2
Step-by-step explanation:
- First observe that the fate of the last person is determined the moment either the first or the last seat is selected! This is because the last person will either get the first seat or the last seat. Any other seat will necessarily be taken by the time the last guy gets to 'choose'.
- Since at each choice step, the first or last is equally probable to be taken, the last person will get either the first or last with equal probability: 1/2
- Armed with the key observation, we see that the event that the last person's correct seat is free, is exactly the same as the event that the first person's seat was taken before the last person's seat.
- Well, each person had to make a random choice, was equally likely to choose the first person's seat or the last person's seat - the random chooser exhibits absolutely no preference towards a particular seat. This means that the probability that one seat is taken before the other must be 1/2
What we know:
Elena and Gary have a talk show on tv. Elena has been in 525 episodes of the show, and gary has been in 325 episodes.
A ratio is a relationship of two numbers a, b and is written a:b
What is the ratio of episodes with Gary to episodes with Elena?
Gary = a = 325
Elena = b = 525
Ratio is 325:525 which reduces to 13:21
The ratio of episodes with Gary to episodes with Elena is 13:21
144 inches because if you multiply 12 feet by 12 inches (12 inches is equal to one foot) it gives you 144 inches.
Answer: 56
Step-by-step explanation:
Given : A bag contains five red marbles, three green ones, one transparent one, three yellow ones, and three orange ones .
Red marbles = 5
Green marbles = 3
Total marbles red or green = 5+3=8
The number of combinations of n things taking r at a time is given by :-
Then, the number of possible sets of five marbles are there in which all of them red or green is given by :-
Now, the number of possible sets of five marbles are there in which all of them red or green = 56