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Stells [14]
3 years ago
6

[9 X (10 – 2)] = [2 + (5 x 2)]

Mathematics
1 answer:
Iteru [2.4K]3 years ago
7 0

Answer:

x=3

Step-by-step explanation:

Simplifying

9 + -2(x + -5) = x + 10

Reorder the terms:

9 + -2(-5 + x) = x + 10

9 + (-5 * -2 + x * -2) = x + 10

9 + (10 + -2x) = x + 10

Combine like terms: 9 + 10 = 19

19 + -2x = x + 10

Reorder the terms:

19 + -2x = 10 + x

Solving

19 + -2x = 10 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.

19 + -2x + -1x = 10 + x + -1x

Combine like terms: -2x + -1x = -3x

19 + -3x = 10 + x + -1x

Combine like terms: x + -1x = 0

19 + -3x = 10 + 0

19 + -3x = 10

Add '-19' to each side of the equation.

19 + -19 + -3x = 10 + -19

Combine like terms: 19 + -19 = 0

0 + -3x = 10 + -19

-3x = 10 + -19

Combine like terms: 10 + -19 = -9

-3x = -9

Divide each side by '-3'.

x = 3

Simplifying

x = 3

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Which expression below is equivalent to the one below? 3 (2x+5)-(-5x+4)
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Answer:

D) 11x + 9

Step-by-step explanation:

3(2x + 5) - (-5x + 4) = (6x + 15) - (-5x + 4) = 6x + 15 + 5x - 4

add like terms:

(6x + 5x) + (15 - 4) = 11x + 9

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(a) Compute the sums of the squares of Rows 1-4 of Pascal's Triangle. That is, compute:
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It's impossible to solve all that you give but I think I can help you. There are many different sites which have soft that can solve tasks like this. Just enter what you need in search bar and follow the first link you see.
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4 years ago
Você precisa colocar suas renas, Raposa, Trovão, Cometa e Relâmpago, em uma fila única para puxar o seu trenó. No entanto, Comet
Gennadij [26K]

Answer:

If the reindeer do not fight, there are 5!=120 ways to line them up in a straight line.

Out of these, Bloopin and Rudy are together in 4!=24 times.  Similarly Rudy and Bloopin will be together 4!=24 times.  So the number of ways they are not together is 120-24-24=72 ways.

Hope this helps.    :)

Step-by-step explanation:

Spanish:

Si los renos no luchan, hay 5! = 120 formas de alinearlos en línea recta.

De estos, Bloopin y Rudy están juntos en 4! = 24 veces. De manera similar, Rudy y Bloopin estarán juntos 4! = 24 veces. Entonces, el número de formas en que no están juntas es 120-24-24 = 72 formas.

Espero que esto ayude       :)

4 0
3 years ago
A three-dimensional model of lucia’s apartment is shown. to cool the whole apartment, an air conditioner must provide 2.5 btus p
SashulF [63]

The number of btus which are needed to cool Lucia’s apartment shown in the three-dimensional model are 20,400 btus.

<h3>What is of volume of rectangular prism?</h3>

Volume of rectangular prism is the amount of quantity, which is obtained in it in the 3 dimensional space.

Volume of a rectangular prism is the product of its width, height and length.

V=w\times h\times l

Here, (w) is the width of the base (l) is the length and (h) is the height of the rectangular prism.

A three-dimensional model of Lucia’s apartment is shown. The image is attached below for the apartment. The three section are there in the apartment. The volume of this apartment is,

V=[(20\times12)+(20-9)\times16+(20\times20)]\times10\\V=8160\rm\; ft^3

To cool the whole apartment, an air conditioner must provide 2.5 btus per cubic foot. To cool, the 8160 cubic foot apartment the btus needed are,

n=8160\times2.5\\n=20400\rm\; btus

Hence, the number of btus which are needed to cool Lucia’s apartment shown in the three-dimensional model are 20,400 btus.



Learn more about the volume of a rectangular prism here;

brainly.com/question/4016105

5 0
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