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soldi70 [24.7K]
2 years ago
12

12(n-6)=13 what’s n, i got 8 but i ain’t sure that that’s right

Mathematics
1 answer:
fgiga [73]2 years ago
8 0

Answer:

n= 85/12

Step-by-step explanation:

Solve by distributing then simplify the arithmetic

it will be 12n - 75 = 13

Add 75 to both sides then Simplify the arithmetic

It will be 12n = 13 + 72 which is 12n = 85

Divide both sides by 12 then Simplify the fraction

it will be like that

12n/12 = 85 / 12

which will equal n = 85/12

Hope it helps! ^w^

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Prime factorization of 43
Volgvan

Answer:

Step-by-step explanation:

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I NEED ANSWER ASAP! I HAVE A LOT OF POINTS, I WILL GIVE 50 POINTS AND BRAINLIEST TO FIRST ANSWERRRRRR!
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Answer:

A) A = 1; B = 0; C = 20

Step-by-step explanation:

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3 years ago
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ICE Princess25 [194]
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3 years ago
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Look at picture. Does anybody know the answer I’m lost?
masha68 [24]

Let x,y be the dimensions of the rectangle. We know the equations for both area and perimeter:

A=xy=36

P=2(x+y)=36 \iff x+y=18

So, we have  the following system:

\begin{cases}xy=36\\x+y=18\end{cases}

From the second equation, we can deduce

y=18-x

Plug this in the first equation to get

xy=x(18-x)=-x^2+18=36

Refactor as

x^2-18x+36=0

And solve with the usual quadratic formula to get

x=9\pm3\sqrt{5}

Both solutions are feasible, because they're both positive.

If we chose the positive solution, we have

x=9+3\sqrt{5} \implies y=18-x=18-9-3\sqrt{5}=9-3\sqrt{5}

If we choose the negative solution, we have

x=9-3\sqrt{5} \implies y=18-x=18-9+3\sqrt{5}=9+3\sqrt{5}

So, we're just swapping the role of x and y. The two dimensions of the rectangle are 9+3\sqrt{5} and 9-3\sqrt{5}

6 0
3 years ago
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