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lisabon 2012 [21]
3 years ago
13

How to turn a percent into a decimal

Mathematics
2 answers:
vitfil [10]3 years ago
4 0

To turn a percent into a decimal, move the decimal point over to the left two places.

For example, 25% would be .25 as a decimal.

An easy way to remember how many places the decimal point moves is by looking at the percent sign. It has two circles on either side of the slash, so two circles = two places.

Elena-2011 [213]3 years ago
3 0

Step 1: Find the percentage in the problem.

Step 2: Create a fraction by putting the fraction as the numerator over 100.

Step 3: Divide the numerator "the percent" by the denominator which is 100.

Example:

32% = ?

\frac{32}{100}

32 ÷ 100 = .32

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A building manager installs sensors to see how often people turn of the lights when they leave a room. After a month the manager
RideAnS [48]

Answer:

The confidence level for a confidence interval of 46.4% to  47.6% is 99.7%.

Explanation:

First of all, the choices for this question are missing so I will include the ones I found for this exact question. The missing options are as follows:

A. 85% B. 95% C. 68% D. 99.7%

When it comes to statistics, a confidence interval (CI) is  a type of interval estimate  of a population parameter. Statistics is all about drawing conclusions in the face of uncertainty. Whenever you take a sample, you can’t be completely certain that your sample truly reflects the population it’s drawn from.

In conclusion, from the choices presented, the best option is the last one. Option D.


5 0
3 years ago
Read 2 more answers
Which statement correctly compares the spreads of the distributions?
Pavlova-9 [17]

Answer:

Step-by-step explanation:

Mode definition is the number which appears most often in a set of numbers.  Since the mode is the same amount of bubbles it is not A.

The range of a set of data is the difference between the highest and lowest values in the set.

To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.

The data has already been ordered for you so you take the highest number and subtract the smallest number.  

Cityview Zoo  44-37=7

Countryside Zoo  45-38=7

6 0
3 years ago
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What is the point slope form of the points?
Darina [25.2K]

the equation of a line in point-slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

to calculate m use the gradient formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 4, - 1) and (x₂, y₂) = (1 1/2, 2 )

m = \frac{2+1}{11/2+4} = \frac{3}{5 1/2} = \frac{6}{11}

using (a, b) = (- 4, - 1), then

y + 1 = \frac{6}{11}(x + 4)


6 0
3 years ago
Rachel plays a game by rolling two number cubes with sides numbered 1 through 6 to win the game the sum of the numbers facing up
Artist 52 [7]

The probability that Rachel will win the game is: 1/12

Step-by-step explanation:

The number cubes has six sides numbered between 1 to 6. the chances of each number are equally likely

Let S be the sample space

The sample space has 6*6 = 36 outcomes.

Now, Let A be the event that the sum of numbers on both number cubes is 10

A = {(4,6),(5,5), (6,4)

n(A) = 3

P(A)= \frac{n(A)}{n(S)}\\=\frac{3}{36}\\=\frac{1}{12}

The probability that Rachel will win the game is: 1/12

Keywords: Probability, Sample

Learn more about probability at:

  • brainly.com/question/9729310
  • brainly.com/question/9738996

#LearnwithBrainly

7 0
3 years ago
My question is in the attachment.<br>​
Nikolay [14]

Answer:

5 and 25

Step-by-step explanation:

let the son's age be x then the father's age is x + 20

In 5 years

son = x + 5 and father = x + 20 + 5 = x + 25

Then

x + 25 = 3(x + 5) ← father is three times as old as son

x + 25 = 3x + 15 ( subtract x from both sides )

25 = 2x + 15 ( subtract 15 from both sides )

10 = 2x ( divide both sides by 2 )

5 = x and x + 20 = 5 + 20 = 25

si=on is 5 and father is 25

8 0
2 years ago
Read 2 more answers
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