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3 years ago

What are Rational numbers

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

4 0

Answer:

Rational Number. Any number that can be written as one integer over another. Includes positive numbers, negative numbers, zero, whole numbers, integers, fractions, terminating decimals, and repeating decimals. Ex: 1/4, 5, -9, 1.8, 1.33333.

Step-by-step explanation:

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A college employs 15 stewards. What is the average monthly wage of the stewards if the college pays 226.20 in wages each month?

madreJ [45]

<h2>Answer:</h2>

$15.08

<h2>Step-by-step explanation:</h2>

As the value 226.20 is the total of all wages, you can work out the mean.

Mean averages are usually worked out as the total / number of values.

Because you already know the total is 226.20 and the number of values is 15 different wages, divide 226.20 by 15 to get $15.08.

5 0

2 years ago

Which of the following must also be known in order to compute the standard deviation?A) ModeB) MeanC) RangeD) Median

igor_vitrenko [27]

Answer:

B) Mean

Step-by-step explanation:

Standard Deviation is the measure of the amount of variation or dispersion of a set of values. Standard Deviation is represented by lower case Greek alphabet sigma σ. Standard Deviation is the square root of variance. Variance is the average of the squared differences or variation or dispersion from the Mean. Therefore, to compute standard deviation, the mean of the given data must be known.

Standard Deviation, σ = $\sqrt{Variance}$

σ = $\sqrt({\frac{1}{N-1}}$ ∑ $_{i = 1}^{N}(x_{i} - X)^{2})$

where

$x_{1},x_{2},x_{3}, ...x_{N},$ are the values of the sample observed,

X is the mean value of these observations, and

N is the number of observations in the sample.

8 0

3 years ago

I'm struggling with this lesson on Study Island, please help!

vazorg [7]

Answer:

Step-by-step explanation:

Associative property states that when three or more numbers are added, the sum is the same regardless of the grouping.

This means that (4x + 13) + 11 is the same as C. 4x + (13 + 11)

5 0

3 years ago

What is the answer? Thank you, :)

sergiy2304 [10]

One litter is 1000 milliliters

if each friend wants 400 milliliters, and there are ten friends, samantha needs 4000 milliliters of lemonade

since each pitcher can hold 2 liters, or 2000 milliliters, she’ll need to refill it 2 times

this is because 4000/2000 is 2

final answer: 2 times

hope this helped!!

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1 year ago

In a chalk. If the carbon piece weighs 3g. What is the weight of the chalk?

Whitepunk [10]

Answer: the weight of chalk stick is 25 g

Step-by-step explanation:

Quantity of Carbon in chalk stick = 3 g Let the weight of chalk be x g.

12%of x =3

3 0

3 years ago