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MArishka [77]
3 years ago
6

Calculate 87 more than 12

Mathematics
2 answers:
lbvjy [14]3 years ago
6 0

Answer:

99

Step-by-step explanation:

We can split this up by doing the tens and then the ones.  12 = 10 + 2, so we have 87 + 12 = 87 + 10 + 2 = 97 + 2 = 99.

OlgaM077 [116]3 years ago
3 0
The answer would be 99 hope this helps
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In a bowl of marbles, there are 10 red ones, 6 blue ones, and green onesa marble is chosen at random from the bowl, find P(red o
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It is most-likely a red marble

Step-by-step explanation:

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You have the numbers 1-24 written on slips of paper. If you choose one slip at random, what is the probability that you will not
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The probability of selecting a number not divisible by 3 is: 2/3

Step-by-step explanation:

There are two methods to solve the question.

  1. We can find the probability of numbers not divisible by 3
  2. We can find the probability of numbers divisible by 3 and then find the complement of it

We will use the second method:

Given:

There are 24 slips

S = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24}

n(S) = 24

Let A be the event that the slip number is divisible by 3

Then

A = {3,6,9,12,15,18,21,24}

n(A) = 8

The probability of number divisible by 3 is:

P(A) = \frac{n(A)}{n(S)}\\=\frac{8}{24}\\=\frac{1}{3}

The sum of the probability of an event's occurrence and non-occurrence is 1. So the probability of numbers divisible by 3 will be subtracted from 1 to find the probability of selecting a number not divisible by 3.

The probability of selecting a number not divisible by 3 will be:

=1-\frac{1}{3}\\=\frac{3-1}{3}\\=\frac{2}{3}

The probability of selecting a number not divisible by 3 is: 2/3

Keywords: Probability

Learn more about probability at:

  • brainly.com/question/9045597
  • brainly.com/question/9103248

#LearnwithBrainly

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