What percentage is $12.10 out of $58.60

Mathematics

1 answer:

jasenka [17]3 years ago

5 0

Answer:

12.10 out of 58.60 is 20.648464163822524 or 21%

Step-by-step explanation:

work out the difference (increase) between the two numbers you are comparing

Increase = New Number - Original Number

Divide the increase by the original number and then multiply the answer by 100

% increase = Increase ÷ Original Number × 100.

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What is the coefficient in the expression 7x+14

Lady_Fox [76]

Answer:

Step-by-step explanation:

The coefficient is the number that comes before the variable

7x+14

In this case, the variable is x.

The number that comes before x is 7, so 7 is the coefficient.

Hope this helps! :)

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3 years ago

Read 2 more answers

Wright the ratio 4.5 : 2.35 in the form n : 1

sergeinik [125]

Answer:

$\frac{9}{47}: 1$

Step-by-step explanation:

you can divide both sides by 2.35 to get the right side to be 1:

$4.5: 2.35\\\frac{9}{47}: 1$

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2 years ago

Find the population mean or sample mean as indicated. Sample: 19, 15, 6, 11, 24 Compute the sample mean for this data set. Selec

yKpoI14uk [10]

Answer:

$\overline{x}=15$

Step-by-step explanation:

the mean is given by:

$\overline{x} = \dfrac{\sum\limits_{i=1}^n x_i}{n} \quad\text{or}\quad \dfrac{\text{sum of all items}}{\text{number of items}}$

In our case this is:

$\overline{x} = \dfrac{19+15+6+11+24}{5} \Rightarrow \dfrac{75}{5}\\\\\overline{x} = 15\\\\$

side note: the main difference between sample mean and population mean is in the 'context'. However, the method to calculate them is the same.

By context I mean: if this the items are taken from some larger category for example: the ages of a few 'students' from a 'class'. Here 'students' are the sample from a larger set that is 'class'. The mean of the 'few students' will be called sample mean. In contrast, if we take the mean of the ages of the whole class then this is called population mean. (population mean == mean of the whole set)

In our case we aren't told exactly where these numbers come from, is this the whole set or a sample from it, the lack of context allows us to assume that the mean can either be population mean or sample mean. So we can safely use any symbol $\mu$ or $\overline{x}$ .