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Margaret [11]
3 years ago
13

(Please help, anyone)

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
4 0

Answer:

9

Step-by-step explanation:

mean =  \frac{5 + 7 + 7 + x}{4}  = 7

Solving for x,

x = 9

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The perimeter of a rectangular pool is 48 feet. Its length is 4 feet
Sphinxa [80]

Answer:

B

Step-by-step explanation:

let's represent the width with x, if we represent the width with x then that makes the length x+4. Therefore the perimeter would be 2x+2(x+4)=48

8 0
3 years ago
How much is 12 + 6?<br> and how much 7+7+12?<br> Please help me
kolezko [41]
<h2>Answer:</h2>

12 + 6

Add Them:

12 + 6 = <u>18</u>

7 + 7 + 12

Add Them:

7 + 7 + 12 = <u>2</u><u>6</u>

6 0
3 years ago
Read 2 more answers
1 kilogram (kg) is about 2.2 times as heavy as 1 pound (lb). Suppose the function f determines Chase's weight (in lbs), f(t) , g
krek1111 [17]

Answer:

  a) 87.7

  b) g(t) = f(t)/2.2

Step-by-step explanation:

The number of pounds is 2.2 times the number of kilograms, so we have ...

  f(t) = 2.2·g(t)

a) On day 37, Chase's weight in kg is ...

  f(37) = 2.2g(37)

  193 = 2.2g(37)

  g(37) = 193/2.2

  g(37) ≈ 87.7

__

b) Rearranging the equation we started with, we have ...

  g(t) = f(t)/2.2

5 0
3 years ago
Write each decimal as a fraction or mixed number in simplest form.​
Gnesinka [82]

Answer:

Answer:

0.{ \bar{325}} =  \frac{325}{999 }  \\

Step-by-step explanation:

1000x = { \boxed{325.325}} \\  - x = { \boxed{0.325325}}

if we subtract:

= 999x = 324.999675

divide by 999:

x =  \frac{324.999675}{999}  \\

round off mumerator to zero decimal place:

x =  \frac{325}{999}

5 0
3 years ago
Read 2 more answers
What is the area of a regular octagon with a side length of 5 m and a distance from the center to the vertex of 6.5 m ?
horsena [70]
Answer is 120
Use the Pythagorean theorem to find the distance from the center to the side, 6.5²-(5/2)²=6², so the distance is 6. The perimeter is 5×8=40 then use ½(6)(40)=120
7 0
4 years ago
Read 2 more answers
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