You toss two dice.
What is the probability of getting a sum that is a multiple of 4?
Is the answer 3/12?
2007-03-15 10:44:32 · 11 answers · asked by Casually Lame 1 in Education & Reference ➔ Homework Help
sorry guys, you have the probability right, but not the explanation. Here's my explanation:
throwing two dice (one red and one blue, for example) has 36 possible outcomes (6 outcomes per die so 6 *6 = 36). That said, there only a few ways to make a multiple of four:
R B
1 3
3 1
2 2
2 6
6 2
4 4
3 5
5 3
6 6
so, since there are 9 outcomes out of 36 or 9/36 = 1/4 = 0.25
2007-03-15 10:57:40 · answer #1 · answered by triviadude 2 · 1⤊ 0⤋
Well, the correct way to think of this is:
There are 36 possible combinations on two six-sided dice. (Not 21 as said above - you have to consider the order of the two dice)
We need the probability of a 4 + prob of 8 + prob of 12.
Probability of a 4 - there are three ways to get a 4 total -
1/3, 2/2, and 3/1.
Probability of an 8 - there are 5 ways to get an 8 total -
2/6, 3/5, 4/4, 5/3, 6/2
Probability of a 12 - there is one way to get this - 6/6
3 + 5 + 1 = 9 out of 36, or 1/4. Yes, 3/12 is the same thing.
2007-03-15 11:36:22 · answer #2 · answered by Anonymous · 0⤊ 0⤋
My answer is 6/21 (reduced to 3 out of 7).
When you toss two dice, there are 21 possible outcomes:
1+1
1+2 2+2
1+3 2+3 3+3
1+4 2+4 3+4 4+4
1+5 2+5 3+5 4+5 5+5
1+6 2+6 3+6 4+6 5+6 6+6
Of those, only 6 pairs add up to a number that is a multiple of 4:
1+3, 2+2, 2+6, 3+5, 4+4, 6+6
6/21 can be reduced to 2/7.
2007-03-15 11:12:24 · answer #3 · answered by polaris_20202000 1 · 0⤊ 1⤋
There are 36 possibilities = 2, 3, 4, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 10, 11, and 12.
There are 9 that are a multiple of 4 = 4, 4, 8, 4, 8, 8, 8, 8, and 12.
So, it equals 9/36. Simplified to lowest terms it is 1/4
2007-03-15 10:53:43 · answer #4 · answered by Please answer! 2 · 0⤊ 0⤋
First, get the knowns and unknowns on the right portion of the equivalent sign: a million. Subtract 2. From the two part: 2x -2x +3 = 3x - 2x - 4 2. Now you have got: 3 = x -4 3. upload 4 to the two part : 3 + 4 + x -4 +4 4. Now you will have: 7 = x 5. practice: 2 (7) +3 = 3 (7) -4 or 14 +3 = 21 - 4 or 17 = 17
2016-09-30 23:42:36 · answer #5 · answered by zeitz 4 · 0⤊ 0⤋
1/4
2007-03-15 10:54:49 · answer #6 · answered by xxbabiesue123xx 2 · 0⤊ 0⤋
yea thats right.......cause 2 die have 6 sides each = 12...
and then the multiples of 4 up to 12 are only 4,8,12; so its 3/12
2007-03-15 10:51:09 · answer #7 · answered by jamesinthepeach 3 · 0⤊ 0⤋
Yep. 1/4 however.
2007-03-15 11:31:58 · answer #8 · answered by larua_2005 3 · 0⤊ 0⤋
Yes! but rembember to always put your anwser in it's simplest form so 1/4.
2007-03-15 10:53:38 · answer #9 · answered by Boo 2 · 0⤊ 0⤋
that is correct but it can be simplified to 1/4.
2007-03-15 10:49:48 · answer #10 · answered by Niw S 2 · 0⤊ 0⤋