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sergiy2304 [10]
3 years ago
8

In the below system, solve for y in the first equation.

Mathematics
2 answers:
fiasKO [112]3 years ago
4 0
The correct answer should be A.
Mars2501 [29]3 years ago
3 0

Answer:

The answer is the option A

y=(1/3)x+2

Step-by-step explanation:

we have

x-3y=-6 -----> first equation

2x-7y=10 -----> second equation

Solve for y in the first equation

That means------> isolate the variable y in the first equation

x-3y=-6

3y=x+6

Divide by 3 both sides

y=(x+6)/3

y=(1/3)x+2

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Find the area of the shape shown below.
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Answer:

The area is 28.

Step-by-step explanation:

Visualize the rectangle as 2 split squares.

The top square is easily 4x4, so the area of that part is 16.

Now visualize the bottom square as two rectangles.

To find the area of the dented side, you would use the equation of finding the area of a triangle, a=(w x h)\frac{1}{2} because the dented side is actually just one half of the rectangle on the other side.

Since it is the same height as the top square, but is 2 in width, it would be written as a=(2 x 4)\frac{1}{2} . So the area of that part is 4, and the area of the other rectangle would be just 2 x 4 so it is 8.

Totaling these numbers, you get the area of the full rectangle.

8 0
3 years ago
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I need help please?!!!
Sveta_85 [38]

Answer:

(-4,14)

(which you already choose)

Step-by-step explanation:

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3 years ago
A triangle has sides with lengths of 45 feet, 76 feet, and 90 feet. Is it a right triangle?
Marat540 [252]

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Step-by-step explanation:

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3 years ago
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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
What is the answer to x-2=7
saul85 [17]

x-2=7

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x-2+2=7+2

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