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4 years ago

What is the mean of -3, 4, 8, -1, -4, -2, 0, 2, 5, 2, -3, 1

Mathematics

2 answers:

Anna11 [10]4 years ago

6 0

Answer: 0.75

Step-by-step explanation:

Mean is simply the average of all the numbers , that is all the numbers will be sum up and divided by the frequency

that is

-3 + 4 + 8 +(-1)+ (-4) + (-2) + 0 + 2 + 5 + 2 + (-3) + 1 / 12

= 9/12

= 0.75

Rom4ik [11]4 years ago

3 0

Answer:

3/4 or .75

Step-by-step explanation:

The mean means the average so you would add up all the numbers then divide by how many numbers there are

-3+4+8+-1+-4+-2+0+2+5+2+-3+1= 9

9/12= 3/4 or .75

depends whether or not you want it in fraction or decimal form

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Callie has a new kitten. They can weigh 3 pounds less than half the weight of Callie‘s cat. Together the cat and kitten weigh 18

gavmur [86]

Answer:

The weight of cat is 14 pounds and the weight of kitten is 4 pounds.

Step-by-step explanation:

Given:

Callie has a new kitten. It can weigh 3 pounds less than half the weight of Callie‘s cat. Together the cat and kitten weigh 18 pounds.

Now, to find the weight of each animal:

Let the cat's weight be $x.$

And the kitten weight = $\frac{x}{2} -3$

Total weight of cat and kitten = 18 pounds.

Now, to set an equation to get the weight of each animal:

$(x)+(\frac{x}{2}-3)=18$

$x+\frac{x}{2} -3=18$

$\frac{2x+x-6}{2} =18$

$\frac{3x-6}{2} =18$

Multiplying both sides by 2 we get:

$3x-6=36$

Adding both sides by 6 we get:

$3x=42$

Dividing both sides by 3 we get:

$x=14\ pounds.$

The weight of cat = 14 pounds.

Substituting the value of $x$ to get the kitten's weight:

$\frac{x}{2} -3\\\\=\frac{14}{2}-3\\\\=7-3\\\\=4.$

The kitten's weight = 4 pounds.

Therefore, the weight of cat is 14 pounds and the weight of kitten is 4 pounds.

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3 years ago

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marishachu [46]

Answer:

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Step-by-step explanation:

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3 years ago

A shipping fee of 5% is charged on every item purchased online.

Bumek [7]

Answer:

All three statements are true

Step-by-step explanation:

A shipping fee of 5% is charged online with every item purchased online

First let's just take each option and calculate them based on this, to see if the answers matched

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40 x 0.05 = 2

Therefore there will be a two dollar fee on Keith's book

40 + 2 =42

The first statement is true

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80 x 0.05 = 4

80 + 4 = 84

The second statement is true

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20 + 1 = 21

The third statements are true

All three statements are true

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4 years ago

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balu736 [363]

Answer:

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Step-by-step explanation:

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labwork [276]

Answer:

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Step-by-step explanation:

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