Gregg has 12 cards. Half are black, and half are red. He picks two cards out of the deck. What is the probability that both cards are red

Answers

Answer 1
Answer:

The solution is, the probability that both cards are red is 5/22.

What is probability?

Probability can be defined as the ratio of the number of favorableoutcomes to the total number of outcomes of an event.

here, we have,

given that,

Gregg has 12 cards.

Half are black, and half are red.

i.e. red = 6 & black = 6.

He picks two cards out of the deck.

now, we have,

Probability of a red card out of 12 cards = 6/12 = 1/2

Now, probability of a red card of 11 cards = 5/11

so, we get,

Combined probability = 1/2 * 5/11 = 5/22

Hence, The solution is, the probability that both cards are red is 5/22.

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Answer 2
Answer: Probability of a red card out of 12 cards = 6/12 = 1/2
Now, probability of a red card of 11 cards = 5/11

Combined probability = 1/2 * 5/11 = 5/22

In short, Your Answer would be 5/22

Hope this helps!

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Answer:

slope -1/3 and y-intercept is -1

Step-by-step explanation:

Answer:

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12√3

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An angle is one-fourth of a circle. How many one-degree angles can be made from this angle?

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Answer:

Step-by-step explanation: Right Angle - 4 times around. Around the angle ( 90 ) You would need 90 angles or 4 to make 360.

Identify the equation that correctly shows the given relationship.

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Consider the statement “Worldwide, there are more than $2.5 trillion in credit card transactions annually.”What is the daily average dollar amount of transactions? Round to the nearest hundred million dollars.

Answers

The daily average dollar amount of transactions where there are 2.5 trillion in credit card transactions annually is 6.8 billion.

Given data:

To calculate the daily average dollar amount of transactions, we'll divide the annual total by the number of days in a year.

Annual credit card transactions: $2.5 trillion

Number of days in a year: 365

Daily average dollar amount of transactions = Annual transactions / Number of days

= $2.5 trillion / 365

Now let's perform the calculation:

Daily average dollar amount = $2.5 trillion / 365

On simplifying the equation:

Daily average dollar amount ≈ $6.849 billion

Rounded to the nearest hundred million dollars, the daily average dollar amount of credit card transactions is approximately $6.8 billion.

Hence, the daily average dollar amount of credit card transactions is approximately $6.8 billion.

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Answer:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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So, let y represent the total amount of money she has

y=20x+25, this equation is linear, the rate of change is constant

the answer is y=20x+25