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IrinaVladis [17]
2 years ago
14

A number is chosen at random from 1 to 25. Find the probability of selecting an even number or multiple of 13

Mathematics
1 answer:
sdas [7]2 years ago
7 0

Probability helps us to know the chances of an event occurring. The probability of selecting an even number or multiple of 13 is 13/25.

<h3>What is Probability?</h3>

Probability helps us to know the chances of an event occurring.

\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}

Number of even numbers between 1 to 25 = 22

Number of multiple of 13 between 1 to 25 = 1

The probability of selecting an even number or multiple of 13 is,

Probability = (12+1)/25 = 13/25


Hence, The probability of selecting an even number or multiple of 13 is 13/25.

Learn more about Probability:

brainly.com/question/795909

#SPJ1

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Sam makes some bread rolls. He gives 2/5 of the bread to his neighbor and 4/9 of the remainder to his cousin. He has 15 tools le
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Answer:

Sam initially made 45 bread rolls

Step-by-step explanation:

Let x = total number of bread rolls made by Sam. He gives 2/5 of the bread to his neighbor. This means he gave 2/5 × x =

2x/5 bread rolls to his neighbor.

The remainder would be x - 2x/5 =3x/5

He gave 4/9 of the remainder to his cousin = 4/9 ×3x/5=12x/45

=4x/15

He has 15 bread rolls left

Total number of bread rolls = what he has left + what he gave his cousin + what he gave his neighbor

x = 15 + 4x/15 + 2x/5

Taking LCM of 15 and cross multiplying

15x= 225+4x + 6x

15x = 225 +10x

15x-10x = 225

5x = 225

x = 225/5 =45

Sam initially made 45 bread rolls

4 0
3 years ago
I’ll give you the BRAINLYEST answer if you can help me on this question!
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Answer:

i think its 6

Step-by-step explanation:

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6 0
3 years ago
If (x) = 3x - 2 and g(x) = 2x + 1, find (f+g)(x).<br> A. X-1<br> B. X-3<br> C. 5x-3<br> D. 5x-1
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Answer:

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3 0
3 years ago
A triangle has side lengths of (7x-4)(7x−4) centimeters, (x+3)(x+3) centimeters, and (3y+2)(3y+2) centimeters. Which expression
Papessa [141]

Answer:

<u>This assumes that the question was meant to read:</u>

"A triangle has side lengths of (7x−4) centimeters, (x+3) centimeters, and (<u>3x+2</u>) centimeters."  <u>And not </u>"A triangle has side lengths of (7x-4)(7x−4) centimeters, (x+3)(x+3) centimeters, and (3y+2)(3y+2) centimeters."

If the revision is correct, the perimeter is 11x + 1 cm

=============================================

<u>If the question was correctly written, then answer is:</u>

50x^2 - 50x + 9y^2  + 12 y  + 29

===============

Step-by-step explanation:

  (7x-4) cm

+ (x+3)  cm

<u>+ (3x+2) cm</u>

11x + 1 cm

If the question was correctly written as is, then:

(7x-4)(7x−4) = 49x^2 - 56x + 16

+(x+3)(x+3)    =     + x^2   + 6x   + 9

+(3y+2)(3y+2) = <u> +9y^2  + 12 y  + 4</u>

                         50x^2 - 50x + 9y^2  + 12 y  + 29 cm

                       

8 0
2 years ago
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