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victus00 [196]
2 years ago
10

PLEASE HELP! I CANT GET A BAD GRADE!

Mathematics
1 answer:
Alekssandra [29.7K]2 years ago
5 0

Answer:

It is decreased by 3.25

Step-by-step explanation:

When you add all 8 numbers you'll get 58 then you divide them by 8 you will get 7.25 which is the mean. To find out what is the decrease we need to take out the 30 and add all the other numbers and we get 28. After that you divide 28 by 7 and you get 4. Subtract 4 from 7.25 and you get 3.25.

2+2+2+3+5+6+8+30=58

58/8=7.25

2+2+2+3+5+6+8=28

28/7 = 4

7.25-4=3.25

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Can somebody please help me 8th grade math puzzle
Naddika [18.5K]
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8 0
3 years ago
Plz help with any of them it’s a emergency
devlian [24]
To find a perimeter, add all sides together:

9) 12 + 12 + 8 + 8 = 20 + 20 = 40 in
10)  3 + 3 + 3 + 3 = 6 + 6 = 12 cm

To find area, multiply length and width, or base and height:

11) 3 x 6 = 18 
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13) 12 x 12 = 144 cm
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15) 
Perimeter: 2(2) + 2(16) = 4 + 32 = 36
Area: 1 x 16 = 16


hope this helps
7 0
3 years ago
Read 2 more answers
-2 = g-9 <br> I need this answer right now as I speak!!
tangare [24]

Answer:

g=7

Step-by-step explanation:

-2=g-9

switch sides

g-9= -2

add 9 to both sides

g-9+9= -2+9

simplify

g=7

3 0
3 years ago
Read 2 more answers
(8.218+9.93)+(17.782+0.07)
Licemer1 [7]
First, using the order of operations(PEMDAS), you would solve what is inside the parenthesis. 
<span>(8.218 + 9.93) + (17.782 + 0.07)
(</span>18.148) + (17.852)
18.148 + 17.852

Now, all you would have to do is add the two sums. 
18.148 + 17.852 = <span>36
</span>
The answer would be 36. 

I hope this helps!

5 0
3 years ago
Can someone please help me with number 11
vazorg [7]
Here is the answer:
if you need step by step let me know

4 0
3 years ago
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