This blog is the online extension of our intermediate classrooms. Our goal is to enhance and document our learning experience throughout the school year, and share this journey with teachers, parents and students. We welcome your constructive feedback, and we look forward to learning with you!
38/1920 1920 possibilities (8 x 12 x 20) for the first 8 die 7/8 is a number not 5. from there only 1/1920 for each can be double 5 leading to 7/1920 for the last 5, you go to the next 1/12 die. 20/1920 for it to be a five on the first and second die (1/8 x 1/12) 11 more numbers that aren't five and for the final 20 die, there is a 1/20 chance of five for each of the 11 leading to 11/1920 (1/8 x 11/12 x 1/20) when added all together, there is a 38/1920 chance of double 5
(31/1920) There is 1 possibility in 1-2. There are 11 non-overlapping possibilities in 2-3. Finally, there are 18 combinations that do not overlap in 1-3.
I think you missed seven from rolling a 5 on the 12 die, and a 5 on the twenty die. Since you already counted the 1 possibility(Which is actually 1,2,3) you can subtract 1. Example: 1 on the eight die, 5 on the twelve die, 5 on the twenty die, 2 on the eight die, 5 on the twelve die, 5 on the twenty die, And so on. -Alan
Cindy's And John's POTW (Cuz he didn't want to type it) 8*12*20=1920
We first start off with if we got 5 on the 8 sided dice and the 12 sided dice. WE then have 19 numbers to land on excluding 5 and so we have 19 possibilies
19+11+7= 37 But we also have our triple 5 so a total of 38 possibilities of double or more 5s.
38/1920
ReplyDelete1920 possibilities (8 x 12 x 20)
for the first 8 die 7/8 is a number not 5. from there only 1/1920 for each can be double 5 leading to 7/1920
for the last 5, you go to the next 1/12 die. 20/1920 for it to be a five on the first and second die (1/8 x 1/12)
11 more numbers that aren't five and for the final 20 die, there is a 1/20 chance of five for each of the 11 leading to 11/1920 (1/8 x 11/12 x 1/20)
when added all together, there is a 38/1920 chance of double 5
sorry forgot to simplify 19/960
Deletealso do you do it at school or home?
31/1920 work on note book. Michelle, Aleks and Yoav
ReplyDelete(31/1920) There is 1 possibility in 1-2. There are 11 non-overlapping possibilities in 2-3. Finally, there are 18 combinations that do not overlap in 1-3.
ReplyDeleteI think you missed seven from rolling a 5 on the 12 die, and a 5 on the twenty die. Since you already counted the 1 possibility(Which is actually 1,2,3) you can subtract 1.
DeleteExample:
1 on the eight die, 5 on the twelve die, 5 on the twenty die,
2 on the eight die, 5 on the twelve die, 5 on the twenty die,
And so on.
-Alan
Cindy's And John's POTW (Cuz he didn't want to type it)
ReplyDelete8*12*20=1920
We first start off with if we got 5 on the 8 sided dice and the 12 sided dice. WE then have 19 numbers to land on excluding 5 and so we have 19 possibilies
19+11+7=
37
But we also have our triple 5 so a total of 38 possibilities of double or more 5s.
38/1920
19/960 (Simplified)
does this work for everything
Deleteor just maybe 2 or 3 die
Delete