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exis [7]
3 years ago
15

How many solutions does 2x-15≤31

Mathematics
1 answer:
Nikitich [7]3 years ago
5 0
Infinite because anything can be greater or equal to 31
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selects a piece of candy and eats it (so it is NOT replaced!) Then selects a piece of candy and eats it. Find the probability of
e-lub [12.9K]

Question:

There are 30 candies in a box, all identically shaped. 5 are filled with coconut, 10 with caramel, and 15 are solid chocolate.

You randomly select a piece of candy and eat it (so it is NOT replaced!), then select a second piece. Find the probability of each event

(a) The probability of selecting two solid chocolates in a row.

(b) The probability of selecting a caramel and then a coconut candy.

Answer:

(a) P(Chocolates) = \frac{7}{29}

(b) P(Caramel\ and\ Coconut) = \frac{5}{87}

Step-by-step explanation:

Given

Coconut = 5

Caramel = 10

Chocolate = 15

Total = 30

For probabilities without replacement, 1 is subtracted after the first selection.

So, we have:

Solving (a): Two solid chocolates

This is calculated as:

P(Chocolates) = P(First\ Chocolate) * P(Second\ Chocolate)

P(Chocolates) = \frac{n(Chocolate)}{Total} * \frac{n(Chocolate) - 1}{Total - 1}

P(Chocolates) = \frac{15}{30} * \frac{15 - 1}{30 - 1}

P(Chocolates) = \frac{15}{30} * \frac{14}{29}

P(Chocolates) = \frac{1}{2} * \frac{14}{29}

P(Chocolates) = \frac{7}{29}

Solving (a): Caramel and Coconut

This is calculated as:

P(Caramel\ and\ Coconut) = P(Caramel) * P(Coconut)

P(Caramel\ and\ Coconut) = \frac{n(Caramel)}{Total} * \frac{n(Coconut)}{Total - 1}

P(Caramel\ and\ Coconut) = \frac{10}{30} * \frac{5}{30- 1}

P(Caramel\ and\ Coconut) = \frac{10}{30} * \frac{5}{29}

P(Caramel\ and\ Coconut) = \frac{1}{3} * \frac{5}{29}

P(Caramel\ and\ Coconut) = \frac{5}{87}

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3 years ago
Some help me asp i need help to this question
Alexus [3.1K]

Answer:

X=11 Y=9

Step-by-step explanation:

6 0
3 years ago
What is the value of (5) 3
saul85 [17]

Answer: 15

Step-by-step explanation: we use distributive property to find the answer

we basically multiply 5 by 3, which is 15.

4 0
2 years ago
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One positive number exceeds another by 4, and their product is 77. find the numbers.
DIA [1.3K]
7*11=77 because 7 and 11 are 4 apart Enjoy!=)
8 0
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1.) what does X equal 4x = -12 <br> 2.)
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Answer:

-3

Step-by-step explanation:

this is x equals to -3

we can divide the 4 to other side

7 0
3 years ago
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