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Stella [2.4K]
3 years ago
12

Two six-sided dice (number cubes) are rolled. Find the probability P(sum of 8 or doubles).

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
7 0

Answer:

5/18

Step-by-step explanation:

The attached chart shows all 36 outcomes, equally likely.

There are 6 outcomes that are doubles (along a diagonal), 5 outcomes that have a sum of 8, but the (4, 4) outcome should only be counted once!

You're interested in 6 + 5 - 1 = 10 outcomes out of the 36 possible outcomes.

Probability of double or sum = 8:  10/36 = 5/18

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Somebody help and explain!!!
Maslowich

Answer: The midpoint of segment PQ is the number 2.5

note: 2.5 as a fraction is 5/2; as a mixed number 2.5 converts to 2&1/2

============================================================

Explanation:

Apply the midpoint formula to get the midpoint of -8 and 6

We simply add up the values and divide by 2 and we get (-8+6)/2 = -2/2 = -1

So point Q is at -1 on the number line, which is exactly halfway from R to P

Focus on just points P and Q now. Apply the midpoint formula again

Q = -1

P = 6

(Q+P)/2 = (-1+6)/2 = 5/2 = 2.5

So the midpoint of segment PQ is 2.5

The decimal 2.5 can be written as the mixed number 2&1/2, showing that this new point is exactly halfway between 2 and 3.

4 0
3 years ago
If b+3/7 = 2/5 then which of the following is true?5b + 15 = 14 b + 3 = 14 5b + 3 = 14 b + 15 = 14
Roman55 [17]

Answer:

The first one is true. 5b+15=14

Step-by-step explanation:

(b+3)/7=  2/5

After cross-multiplication:

5(b+3)=2*7

5b+15=14

5 0
4 years ago
What is the area of this ^2
Ad libitum [116K]
<h2>Question:- Area of the given diagram</h2>

<h2>Answer :- </h2>

Divide the diagram as shown in attachment.

Now first calculate the area of the rectangle having side 1 and 12

So area = length ×breadth

Area = 1× 12 = 12 unit²

Now find the Area of the remaining triangle with sides 12,13,5 units

So

Area =  \frac{1}{2}  \times base  \times height \:

Now put the value as -> base= 5 and height= 12

Area =  \frac{1}{2}  \times base  \times height \:  \\ Area =  \frac{1}{2}  \times 5 \times 12 \\ Area =  \frac{1}{ \cancel2}  \times 5 \times  \cancel{12}^{ \:  \: 6}  \\ Area = 5 \times 6 \\ Area = 30 \: units^{2}

Now add both areas for your answer

Area{ \tiny{1}} = 12 {units}^{2}  \\ Area{ \tiny2} = 30 {units}^{2}  \\ Area{ \tiny{total}} = Area{ \tiny{1}} + Area{ \tiny{2}} \\ Area{ \tiny{total}} = 12 + 30 = 42 {units}^{2}

8 0
3 years ago
2.15+2.5+3.85+. 5, What is the answer plz
lukranit [14]
2.15 + 2.5 = 2.65
2.65 + 3.85 = 6.40
If it is 0.5
6.40 + 0.5 = 0.9
If you meant 0.05
6.40 + 0.05 = 6.45
If you meant 5 (as in the whole number)
6.40 + 5 = 11.40

hope this helps 
4 0
3 years ago
Read 2 more answers
Simplify 1/4(12x-8)-(5x-1)
Ronch [10]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
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