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3 years ago

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1 answer:

5 0

None of the given options are matching. For the expression after putting the value 2 on the place of x. We will get 10 for expression 1 and 0 for the expression 2.

<h3>How can we find the solution to an equation?</h3>

We do same operations on both the sides so that equality of both expressions doesn't get disturbed.

Solving equations generally means finding the values of the variables used in it for which the considered equation is true.

The given equation is;

Equation 1;

$\rm 3x+4$

Equation 2;

$x+6-3x-2$

After putting the value 2 on the place of x we get;

Equation 1;

$\rm = 3x+4$

$=3 \times 2+4 \\ =10$

Equation 2;

$= x+6-3x-2\\\\\ =2+6-3\times 2-2 \\\\ =2+6-6-2\\\\ =8-6-2 \\\\ = 0$

Hence, the none of the given options are matching.

To learn more about the equation, refer to the link;

brainly.com/question/10413253

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One cubic meter of water weighs approximately 2200 pounds. There are 100 cm in one meter. If you have a box-shaped fish tank tha

Diano4ka-milaya [45]

Answer:

158.4 pounds

Step-by-step explanation:

first find the volume of the tank

$V = 30 \times 30 \times 80$

$V = 72000 cm^3$

to convert this to m^3 we know that 1m = 100cm

$V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}}{100\,\text{cm}}\right)^3$

$V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}^3}{100^3\,\text{cm}^3}\right)$

the cm^3 cancel out.

$V = \dfrac{72000}{100^3} m^3$

$V = 0.072\,m^3$

by simply converting the side-lengths to meters beforehand can give you this answer directly:

$V = 0.3 \times 0.3 \times 0.8 = 0.072 m^3$

it is given that 1 meter cube of water weighs about 2200 pounds.

$1\,m^3 = 2200 \,\text{lb}$

multiply both sides with 0.072 to find our answer:

$1\,m^3 \times 0.072 = 2200 \times 0.072 \,\text{lb}$

$0.072\,m^3 = 158.4 \,\text{lb}$

hence the weight of the water in the tank would be 158.4 pounds!

3 0

3 years ago

Galina had two boxes with pieces of paper in each. In the first box, each piece of paper had one possible outcome from flipping

Natali5045456 [20]

Answer:

Step-by-step explanation:

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4 years ago

Find the measure of ∠ADB ∠ A D B if ∠ADC = 82°

sveta [45]

Assuming CDB is a straight line then angle ADB = 180-82=98

8 0

3 years ago

How many hours are in 170 minutes

enyata [817]

Answer:

There are a total of 2 hours and 50 min.

Step-by-step explanation:

1 hour = 60 min

60 x 2 = 120 min

60 x 3 = 180 min - too much

so take away 10 from 180 min to get 170

8 0

3 years ago

3. A website allows users to download individual songs or whole albums.

victus00 [196]

Answer:

Each song costs $2 and each album costs $10.

Step-by-step explanation:

Since a website allows users to download individual songs or whole albums, and all songs cost the same price to download and all albums cost the same price to download, and Karim pays $ 30 to download 5 songs and 2 albums while Kimberlyn pays $ 26 for download 3 songs and 2 albums, to determine what is the cost to download 1 song and the cost to download 1 album, the following calculations must be made:

5X + 2Y = 30

3X + 2Y = 26

(30 - 26) / (5 - 3) = X

4/2 = X

2 = X

Therefore, each song has a cost of $ 2.

Thus, to know the cost of each album (knowing that both downloaded the same amount, that is, 2), the following calculation must be performed:

5x2 + 2Y = 30

10 + 2Y = 30

2Y = 30 - 10

2Y = 20

Y = 20/2

Y = 10

Therefore, each album has a cost of $ 10.

5 0

3 years ago