When rolling two dice , there are blank different ways to roll at least one 4.

Question

21-06-2019
Mathematics

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When rolling two dice , there are blank different ways to roll at least one 4.

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Ben Ben · Answer 1 · 2019-06-21T21:31:06+02:00

Ben Ben

21-06-2019

Answer:

[tex]3[/tex]

Step-by-step explanation:

These [tex]3[/tex] ways are:

The first die showing a 4 and the second die showing a different number
The second die showing a 4 and the first die showing a different number
Both dice showing 4s

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freckledspots freckledspots · Answer 2 · 2019-06-21T21:33:46+02:00

Answer:

11

Step-by-step explanation:

At least one means 1 being 4 or 2 of them being 4 this in case.

You could set a table:

1| 1 2 3 4 5 6

2| 1 2 3 4 5 6

3| 1 2 3 4 5 6

4| 1 2 3 4 5 6

5| 1 2 3 4 5 6

6| 1 2 3 4 5 6

There are 11 different ways to get at least one 4.

See this:

(first dice, second dice)

(1,4)

(2,4)

(3,4)

(4,4)

(4,5)

(4,6)

But there is also

(4,1)

(4,2)

(4,3)

(4,4) already counted earlier so don't count this one again

(4,5)

(4,6)