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kirill [66]
3 years ago
10

A bag contains 120 marbles. some are red and some are black. there are 19 red marbles for every black marble. how many red marbl

es are in the bag?
Mathematics
2 answers:
muminat3 years ago
8 0
111 is the answer to your problem
mixer [17]3 years ago
3 0
111 is the answer to the problem
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Suppose that the probability of a drought in any independent year is 20%. Out of those years in which a drought occurs, the prob
astraxan [27]

Answer:

the correct option is d. 0.02

Step-by-step explanation:

We have the following events:

x: A drought occurd

y: Water rationing.

Therefore, according to the plaster we have:

P [x] = 0.20

P [y | x] = 0.10

Now P [it is a drought and water rationing happens] =

P [x n y] = P [y | x] * P [x] = 0.10 * 0.20 = 0.02

Which means that the correct option is d. 0.02

3 0
3 years ago
What is the question?
max2010maxim [7]

Answer:

(23, 4)

Step-by-step explanation:

If we use substitution, we need to rewrite the 2nd equation so we can substitute it into the first.

Step 1: Rewrite 2nd equation

x = 5y + 3

Step 2: Substitution

2(5y + 3) - 5y = 26

Step 3: Distribute

10y + 6 - 5y = 26

Step 4: Combine like terms

5y + 6 = 26

Step 5: Isolate <em>y</em>

5y = 20

y = 4

Step 6: Find <em>x</em>

x - 5(4) = 3

x - 20 = 3

x = 23

And we have our final answer!

7 0
3 years ago
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<h3>The alternate angles are equal, the co-interior angles are supplementary, and the corresponding angles are congruent.</h3>
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The _____ gives the location on the X axis and the _______ gives the locaton on the Y axis
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Step-by-step explanation:

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manuel wanted to put a brick walkway through his backyard from door to bbq area. the walkway is going to be 6 yards long. so far
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155 inches

Step-by-step explanation:

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3 years ago
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