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velikii [3]
3 years ago
15

A random number is drawn between 1 - 100. Find P( multiple of 5 ).

Mathematics
1 answer:
uysha [10]3 years ago
3 0

Answer:

0.2  or   20%

Step-by-step explanation:

-Probability is the chance taking place and is calculated as the number of times that event occurs divided =by the total number of events.

-The are 20 multiples of 5 between 1 and 100:

5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100

#Given that there are 100 events and 20 multiples of 5, the probability can be calculated as follows:

P(multiple\ of \ 5)=\frac{Multiples \ of \ 5}{Number \ of \ events}\\\\=\frac{20}{100}\\\\=0.2 \  or \ 20\%

Hence, the probability of multiples of 5 between 1 and 100 is 0.2 or 20%

You might be interested in
Pls answer me this all question​
Scorpion4ik [409]

Answer:

a. 5 \frac{21}{40}

b. \frac{1}{42}

Step-by-step explanation:

a. \: 12 \frac{2}{5}  - 6 \frac{7}{8}

\frac{62}{5}  -  \frac{55}{8}

\frac{62}{8}  \times   \frac{8}{8}  -   \frac{55}{8}   \times  \frac{5}{5}

\frac{62 \times 8 - 55 \times 5}{40}

\frac{221}{40}

5 \frac{21}{40}

b. \:  \frac{3}{14}  -  \frac{4}{21}

\frac{3}{14}  \times  \frac{3}{3}  -  \frac{4}{21}  \times  \frac{2}{2}

\frac{3 \times 3}{42}  -  \frac{4 \times 2}{42}

\frac{1}{42}

Hope it is helpful....

5 0
3 years ago
Read 2 more answers
Explain the different ways it is possible to add two rational numbers and get a negative number.
Eduardwww [97]

<u>Answer:</u>

both numbers are negative

negative number is greater than the positive number

<u>Step-by-step explanation:</u>

In order to add two rational numbers and get a negative value, one of two scenarios should occur:

<u>1- both numbers are negative.</u>

2- negative number is greater than the positive number

3 0
3 years ago
A desk is 39 inches wide. What is the width in yards
Stolb23 [73]

Answer:

1.0833 yd

Step-by-step explanation:

Inches    Yards

37"         1.0278 yd

38"         1.0556 yd

39"         1.0833 yd

40"         1.1111 yd

Have a great day! :D

4 0
3 years ago
According to the empirical (69-95-99.7) rule, if a random variable z has a standard normal distribution, then approximately 95%
Dmitry_Shevchenko [17]

Using z-scores, it is found that the value of z is z = 1.96.

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

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula, which for a measure X, in a distribution with mean \mu and standard deviation \sigma, is given by:  

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.
  • Each z-score has an associated p-value, which is the percentile.

  • The normal distribution is symmetric, which means that the middle 95% is between the <u>2.5th percentile and the 97.5th percentile</u>.
  • The 2.5th percentile is Z with a p-value of 0.025, thus Z = -1.96.
  • The 97.5th percentile is Z with a p-value of 0.975, thus Z = 1.96.
  • Thus, the value of Z is 1.96.

A similar problem is given at brainly.com/question/16965597

7 0
2 years ago
HELP PLEASE
Hoochie [10]
If you had values instead of algebraic expressions, you would find the area of the patio and subtract that from the area of the yard. Even though you don't have values, you can still find the area and subtract by expanding and simplifying:
(8x + 2)(6x + 3)
8x × 6x = 48x²
8x × 3 = 24x
2 × 6x = 12x
2 × 3 = 6
So you get 48x² + 36x + 6 as your area of the yard

(x + 5)(3x + 1)
x × 3x = 3x²
x × 1 = x
5 × 3x = 15x
5 × 1 = 5
So the area of the patio is 3x² + 16x + 5

(48x² + 36x + 6) - (3x² + 16x + 5)
48x² - 3x² = 45x²
36x - 16x = 20x
6 - 5 = 1

So your answer is D. 45x² + 20x + 1. I hope this helps!

6 0
3 years ago
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