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Vsevolod [243]
3 years ago
7

HELP PLEASEEEEE I'll give you a crown

Mathematics
1 answer:
arlik [135]3 years ago
4 0

Answer:

8.64%

Step-by-step explanation:

Write it as a decimal

7/81 = 0.0864

0.0864 is the decimal representation for 7/81

For Percentage Conversion :

step 1 To represent 0.0864 in percentage, write 0.0864 as a fraction

Fraction = 0.0864/1

step 2 multiply 100 to both numerator & denominator

(0.0864 x 100)/(1 x 100) = 8.64/100

8.64% is the percentage representation for 7/81

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It will look like this after:21x-13=4

Then you would add 13 to both sides

It will look like this after: 21x=17

Then you would divide 21 on both sides

Your final product is 21/17


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katen-ka-za [31]

Answer:

  total cost = 8x^2 +17280/x

Step-by-step explanation:

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And the cost of the sides is ...

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The total cost of the box is ...

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_____

<em>Comment on the cost function</em>

You will find this function has a minimum at x=∛1080 ≈ 10.260 in. The total cost is about $2526.35, and the box is 2/3 times as tall as wide. That aspect ratio makes any pair of opposite sides cost the same as the base, the generic solution to a cost optimization problem of this sort.

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2 years ago
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