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Irina-Kira [14]
3 years ago
12

Andy and Elizabeth each rounded 2,639,456 to the nearest ten-thousand. Andy got 2,640,000. Elizabeth got 2,630,000. who is corre

ct? explain the error that was made.
Mathematics
1 answer:
Gelneren [198K]3 years ago
4 0
Andy was correct
2639456 is rounded to 2640000 because the 9 from 39,456 rounds up to 0 and the three changes to a 4
Elizabeth rounded down instead 
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Answer:

The circumference is 75.36 inches.

Step-by-step explanation:

Hi there! Please take a look at the following explanation and let me know in the comment if you have any doubts!

<h3>Given:</h3>

We are given the <u>radius</u> that’s equal to <u>12 inches</u> and π = <u>3.14</u>

<h3>Problem:</h3>

We want to find <u>the circumference</u>.

<h3>Circumference Formula:</h3>

\displaystyle \large{C=2\pi r} which simply means <em>circumference = 2*π*radius</em> or sometimes can also be written as \displaystyle \large{C=\pi d} which means <em>circumference = π*diameter </em>since 2r means two times of radius and that’s technically diameter.

<h3>Step:</h3>

Determine the following:

  • π = 3.14 as given
  • r = 12 as given

Apply the circumference formula.

\displaystyle \large{C=2\cdot 3.14 \cdot 12}\\\\\displaystyle \large{C = 24 \cdot 3.14}\\\\\displaystyle \large{C=75.36}

Hence, the circumference is <u>75.36 inches</u>.

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Fofino [41]

-12=4(x-7)-8x

One solution was found :

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Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :


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Step by step solution :

Step  1  :

Equation at the end of step  1  :

 -12 -  (4 • (x - 7) -  8x)  = 0

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :


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Equation at the end of step  3  :

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Step  4  :

Equations which are never true :

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Hope this helps you, Have a nice day.

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