ninjapig647
18.11.2020 •
Mathematics
In the middle school debate club, 30% of the members are in sixth grade. If there are 12 graders in the club, how many total members are there?
A) 30
B) 36
C) 38
D) 40
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Ответ:
C
Step-by-step explanation:
brian ashely nick austin parker chase gabe liah eathen jazzmin rorger matt THESE ARE ALL THE SIXTH GRADERS
Ответ:
5.8%
Step-by-step explanation:
In this situation there is no replacement so we have to mulitply the probablilty of the first,second, and third marble being green. First marble has a 8/19 probablilty of being selected because 19 total marbles in the bag and 8 green marbles. the next marble will have a 7/18 probabililty because now only 18 marble are in the bag and we are assuming we selected a green marble on our first draw. Same thing with the last green marble it would be 6/17 because there would be 17 marbles in the bag and 6 green ones left assuming we got the first 2
so 8/19*7/18*6/17=
56/969=
0.05779
5.77%
5.8%