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Oxana [17]
3 years ago
8

What is the probability of rolling the sum of 5 or 8 on a pair of number cubes?

Mathematics
2 answers:
Tasya [4]3 years ago
7 0

|\Omega|=6^2=36\\|A|=\underbrace{4}_{\text{the sum is 5}}+\underbrace{5}_{\text{the sum is 8}}=9\\\\P(A)=\dfrac{9}{36}=\dfrac{1}{4}=25\%

butalik [34]3 years ago
5 0
The probability of rolling a 5 is 4/36 (reduced to 1/9) and the probability of rolling an eight is 5/36. Rolling either would be 9/36 (reduced to 1/4)
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-1/3(n+15)=-2. what is n? please show work on paper and send it to me asap.​
Anton [14]

Step-by-step explanation:

Use the distributive formula to solve for n:

-a(b + c) = -ab - ac

So, to solve this you would have to use the distributive property:

-1/3n - 5 = -2

Add 5 to both sides

-1/3n - 5 + 5 = -2 + 5

-1/3n = 3

Now, multiply -3 from both sides

-1/3 * -3 n = 3 * -3

Simplify

n = -9

Hope that helped!!

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ivann1987 [24]

Answer:

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3 years ago
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Answer:

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Step-by-step explanation:

Step 1: Substitution

109x = 79x + 2506

30x = 2506

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Step 2: Plug <em>x</em> in

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