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Elanso [62]
3 years ago
13

Margaret is playing a game with a standard deck of 52 cards which contains 4 jacks. The first player to select a jack gets to st

art the game. What is the theoretical probability that Margaret, when choosing first, will choose a jack?
Mathematics
2 answers:
Amanda [17]3 years ago
5 0

Answer:

<h2>The answer is 1/13</h2>

Step-by-step explanation:

plz mark as brainliest!!!

Andrews [41]3 years ago
3 0

Answer:

1/13

Step-by-step explanation:

i did ot

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Given the following geometric sequence, find the common ratio: {3, 18, 108, ...).
vodomira [7]
Geometric sequences go up due to a common ratio. Here the common ratio can be worked out by dividing a term by its previous term e.g term 2 divided by term 1.

18/3 = 6&#10;

Therefore the common ratio is 6.
4 0
2 years ago
What is the result when the number 15 is increased by 20%
bearhunter [10]

Answer:

75

Step-by-step explanation:

15 divided by .20 = 75

3 0
2 years ago
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(08.02)Using the following data, calculate the mean absolute deviation:
Dahasolnce [82]

Answer:

7

Step-by-step explanation:

10+7+1+6+7+9+8+10+2+5

-----------------------------------

10

65 ÷ 10

= 6.5, round up, = 7

7 0
3 years ago
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Train travels at 3 hours if it's speed is 65 miles per hour. It takes the train 2.5 hours if it's speed is 78 per hour . Identif
seraphim [82]

Step-by-step explanation:

Let the original speed of the train be x km/h.

Time taken to cover a distance of 360 km =  360/x hours.

New speed of the train = (x+5) km/h.

Time taken to cover a distance of 360 km at new speed = 360/x+5 hours.

Since, the train takes 1 hour less time,

∴360/x - 360/ x+5 = 1

⇒360 (5) = x² + 5x

⇒1800 = x² + 5x

⇒x² + 5x - 1800 = 0

⇒x² + 45x - 40x - 1800 = 0

⇒x (x+45) - 40( x +45) = 0

⇒(x+45) (x-40) = 0

⇒x = (-45), 40

But since speed cannot be in negative.

∴x = 40 km/hr.

Hence, the original speed of the train is 40 km/h.

3 0
3 years ago
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For a right circular cylinder, if the radius is tripled and the height is shrunk down to half its size, then what is the surface
Elden [556K]

The surface area of a cylinder that the radius tripled and it height is brought down to half is 3890.46 inches²

<h3 /><h3>How to find the surface area of a cylinder?</h3>

Surface area of a cylinder = 2πr(r + h)

Therefore,

radius is tripled = 3(7) = 21 inches

height is shrunk half its size = 17 / 2 = 8.5 inches

Therefore,

surface area = 2 × 3.14 × 21 (21 + 8.5)

surface area = 131.88(29.5)

surface area = 3890.46 inches²

learn more on cylinder here: brainly.com/question/16551354

#SPJ1

3 0
2 years ago
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