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nadezda [96]
2 years ago
12

Suppose a jar contains 11 red marbles and

Mathematics
1 answer:
Alina [70]2 years ago
8 0

Answer:

There are 32 marbles. 11 are red. So odds of a red on the first are 11/32.

Now there are 31 marbles left. 10 are red. So odds of a red on the second is 10/31.

Probability both are red, just multiply …. 11/32x 10/31 = 110/992 or 0.111.

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There are 10 pieces of fruit in a fruit bowl. There are x bananas in the fruit bowl. All of the rest of the fruit are apples.
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The probability that Sarah takes one piece of each fruit is; (10x - x²)/100

<h3>Probability</h3>

We are given;

  • Number of fruits in the bowl = 10
  • Number of bananas = x

Thus, remaining fruits are;

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Probability that at least one will be banana = x/10

Probability that at least one will be apple = (10 - x)/10

Thus;

Probability that she takes one piece of each fruit is;

x/10 × (10 - x)/10

⇒ x(10 - x)/100

⇒ (10x - x²)/100

Read more about probability at; brainly.com/question/251701

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3 years ago
The length, breadth and height of a rectangular room are in the ratio of 3:2:1. If the room contains 3072 cubic meter of air, fi
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Answer:

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  • breadth: 16 m
  • height: 8 m

Step-by-step explanation:

Let k represent the multiplier of the ratio units that will give actual dimensions. The the height can be represented by k, the breadth by 2k, and the length by 3k. The volume of the room will be ...

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The height of the room is 8 m, its breadth is 16 m, and its length is 24 m.

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Step-by-step explanation:

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