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2 years ago

If a card is picked at random from a standard 52-card deck, what is the probability of getting a spade or a King?

1 answer:

8 0

There are 13 spades in a deck, so the probability is 1/4. There are 4 King’s in the deck, but a king can also be a spade, so what would be 1/13 is actually 3/52. So add the probabilities together, and you get 13/52 + 3/52 = 16/52, or 4/13

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A lottery has 60 numbers. To win the jackpot one needs to match all 7 numbers that are drawn by the machine. Is this a PERMUTATI

Vadim26 [7]

Answer: Hence, our required probability is $\dfrac{1}{386206920}$

Step-by-step explanation:

Since we have given that

Numbers in a lottery = 60

Numbers to win the jackpot = 7 numbers

We need to find the probability to hit the jackpot:

So, our required probability is given by

$P=\dfrac{^7C_7}{^{60}C_7}\\\\P=\dfrac{1}{386206920}$

This is a combination problem as we need to select 7 numbers irrespective of any arrangements.

Hence, our required probability is [tex]\dfrac{1}{386206920}[/tex

4 0

2 years ago

Find the quotient 6 2/7 ÷ 2 3/4

gregori [183]

Answer:

Find the quotient.

6 2/7 divided by 2 3/4.

2 2/7. (MY ANSWER)

17 2/7.

2 6/11.

7/16.

Step-by-step explanation:

I hope this helps you!!

8 0

1 year ago

Read 2 more answers

Use the model below to write and solve equation

Pepsi [2]

Answer is:

X is 1, very simple

6 0

2 years ago

What is the name for an 8-sided polygon

Mazyrski [523]

An 8 sided polygon is, an Octagon

8 0

1 year ago

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GIVING LOTS OF POINTS!!!!

Orlov [11]

Answer:

80 cubes

Step-by-step explanation:

volume of one small cube = 1 /2 × 1 / 2 × 1 / 2

= 1 / 8cm^3

let x be the number of cubes needed

1 / 8 × x = 10

x = 10 × 8

x = 80 cubes

6 0

2 years ago