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3 years ago

AGES OF CHILDREN IN AN ART CLASS ARE : 12, 9, 8, 13, 9, 10,

Mathematics

1 answer:

Svetllana [295]3 years ago

6 0

Answer:

Mean = 10.181818181818181818181818

Median = 10

Mode = 8

Range = 13 - 8 = 5

Step-by-step explanation:

MEAN 8+8+8+9+9+10+10+12+12+13+13 = 112/11=10.1818 forever.

MEDIAN 8 8 8 9 9 10 10 12 12 13 13

count five in both directions

MODE most numbers in a number scheme

RANGE highest number minus lowest number.

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Evaluate 12/3•(-3)+|-8|

cluponka [151]

First you do 12 divided by 3, according to PEMDAS, which is 4 so then multiply it by -3 which comes out to -12 + 8 then your final answer comes out to -4

4 0

4 years ago

2. Use the distributive property to write an expression that is equivalent to 12 + 4x.

fredd [130]

Answer:

4(x+3)

Step-by-step explanation:

So with the distrubutive property, you look at the numbers you have, and then take the greatest common factor between the two.

So lets think about it, what goes into both 12 and 4?

2 does, but is that the greatest common factor? No.

What about 4? That goes into 12 and 4. Is it the greatest common factor? Yup it is.

So, what do we get when we take 4 from 4x? We get 1x, or just x.

How about 12? Well, when we take 4 from 12, we get 3.

Now, lets take the common greatest factor, and our two new numbers and put them back into the expression.

Remember that the greatest common factor, the one you took from the other numbers, is what goes first:

4()

Remember to put the parethese there, or else you would only be multiplying the first number by 4, and not the second.

Next lets put the other numbers in. In most expressions, you should put the x number in first, and the normal number in second. So it should now be:

This is your expression.

Hope this helps! ;)

3 0

3 years ago

Read 2 more answers

What is 8 teaspoons for 4 cups as a unit rate?

Law Incorporation [45]

(8 teaspoons) / (4 cups) = 2 teaspoons per cup

(4 cups) / (8 teaspoons) = 1/2 cup per teaspoons

6 0

4 years ago

The ratio of red cars to blue cars in a parking lot was 5 : 3. If there were 40 red cars, how many blue cars were there?

Ne4ueva [31]

Answer:

24 blue cars

Step-by-step explanation:

In this problem, one is given the ratio of red to blue cars in the parking lot. One is given the actual number of red cars, and one is asked to find the number of blue cars. One can set up a proportion; ratio to actual, then solve to find the number of actual blue cars using the method of cross-products. One can set up the proportion using the ratios, but it is easier to express the proportion as the equality of two fractions. Thus, the following equation can be formed, let the parameter (x) represent the actual amount of blue cars;

$\frac{red}{blue}= \frac{5}{3} = \frac{40}{x}$