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OverLord2011 [107]
3 years ago
9

12 more than the difference of half a number and 3 is 45. Plz answer

Mathematics
1 answer:
son4ous [18]3 years ago
7 0

Answer:

x=18

Step-by-step explanation:

the result of 12 added to the difference of half a number and 3 is 45.

that looks something like this

12+\frac{1}{2}x= 45

which can be solved as such

\frac{1}{1} x+(12-3)=45\\\frac{1}{2}x+9=45\\\frac{1}{2}x=45-9\\ \frac{1}{2}x=36\\\frac{2}{1}*\frac{1}{2}x=36*\frac{2}{1} \\  x=36*2\\x=72

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A=\cfrac{1}{4}(6)\cfrac{9^2}{2^2} \cot(30^o)\implies A=\cfrac{243}{8}\cot(30^o)\implies A=\cfrac{243\sqrt{3}}{8} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=\frac{4}{5} \end{cases}\implies A=\pi \left( \cfrac{4}{5} \right)^2\implies A=\cfrac{16\pi }{25} \\\\[-0.35em] ~\dotfill

\stackrel{\textit{area of the hexagon}}{\cfrac{243\sqrt{3}}{8}}~~ - ~~\stackrel{\textit{area of the circle}}{\cfrac{16\pi }{25}}\implies \cfrac{6075\sqrt{3}-128\pi }{200}

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2 years ago
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GenaCL600 [577]

Answer:

12

Step-by-step explanation:

So, all you have to do is multiply 6 and 2.

In \frac{1}{2} If you add \frac{1}{2}+\frac{1}{2} it equals 1 whole.

If 2 \frac{1}{2} equals 1 whole. You multiply 6 by 2.

Hope this helped!

6 0
3 years ago
Read 2 more answers
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