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Bumek [7]
2 years ago
8

A pet store has cats. Here are their weights (in pounds).10,7,16,11,16,6,7 Find the mean weight of these cats. If necessary, rou

nd your answer to the nearest tenth.

Mathematics
2 answers:
kumpel [21]2 years ago
6 0

Answer:

10.4

Step-by-step explanation:

the mean is you add up all of the numbers then divide by the amount of numbers so in this case it would be

10+7+16+11+16+6+6=73

There are 7 numbers so

73/7=10.42

Rounded to the nearest tenth would be 10.4

ASHA 777 [7]2 years ago
6 0

Answer: 10.43 lbs

Step-by-step explanation:

To find the mean (average) of a group of numbers we simply add the numbers and divide by the total number of items we added.

In our example we get (10+7+16+11+16+6+7)/7

= 73/7

= 10.4285714286

= 10.4 (answer is rounded to the nearest tenth)

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The amount of oil used by a ship traveling at a uniform speed varies jointly with the distance and the square of the speed. The
frosja888 [35]

Answer:

Step-by-step explanation:

Joint variation has the equation

y = kxz

k is the constant of variation and needs to be solved for using the initial conditions, then filled in later to another equation related to the given info to solve for something else.  We are given y = amount of oil used, x = distance traveled, z-squared is the speed.  Our equation looks like this, to be exact:

y=kxz^2

Filling in with the initial conditions:

34=k(60)(20)^2 which gives us the

k = .0014166667

Now we need to find the amount of oil used, y, under other circumstances, but this time we have our k.

y=(.0014166667)(32)(23)^2

which gives us that the amount of oil used, when rounded to the tenths,

y = 24.0 barrels

7 0
3 years ago
If the are of a square is multiplied by 9, the area becomes 16 square inches. Find the length of the X side of the square.
Volgvan
X^2 = 16/9
X = 4/3

Length of X is 1 1/3   inches
8 0
3 years ago
what about this one? is it correct? I am all done but would like to check if they are alright since I am so so rounding
Nutka1998 [239]
They're all correct! Nice job :)
7 0
3 years ago
Equivalent ratio tables​
RoseWind [281]

Answer:

11, 44, 24

Step-by-step explanation:

On the right side column you are adding 11 every time you add 4 on the left side column

For example :

4:11

8:22

12:33

16:44

20:55

24:66

Hope this helps!!! :)))

4 0
3 years ago
Smart ppl i rly rly rly need your help on this please ! i dont get it!
elixir [45]

Answer:

The first one is -2x^2 - 21x + 4, the second one is -15 (I think, not 100% sure), the third one is 4xyz + 3yz + 5x - 4 (also not 100% on this one)

3 0
3 years ago
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