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Sliva [168]
3 years ago
8

7x + 1 = x + 7 whats the answer

Mathematics
2 answers:
JulijaS [17]3 years ago
8 0

Answer:

x=1

Step-by-step explanation:

7x+1=x+7

7x-1=x+6

7x=-x+6

-x

6x=6

6x/6=6/6

x=1

Gnoma [55]3 years ago
4 0

7x + 1 = x + 7

7(1) + 1 = 8

1 + 7 = 8

If you substitute 1 for x, the statement is true. Therefore, x = 1.

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Determine if the equation y = 2/5 x − 4 y=25x-4 represents a proportional relationship. If so, determine the constant of proport
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Answer:

The linear equation represents a proportional relationship and its constant of proportionality is k = \frac{2}{5}.

Step-by-step explanation:

A proportional relationship exists when the following relationship is observed:

u = k\cdot v

Where:

u - Dependent variable.

v - Independent variable.

k - Proportionality constant.

If y =\frac{2}{5}\cdot x - 4 and v = x and u = y+4, the following expresion is found:

y = \frac{2}{5}\cdot x -4

y + 4 = \frac{2}{5}\cdot x

u = \frac{2}{5}\cdot v

The linear equation represents a proportional relationship and its constant of proportionality is k = \frac{2}{5}.

8 0
3 years ago
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ruslelena [56]

9514 1404 393

Answer:

  510 cm³

Step-by-step explanation:

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The overall width of the front face is 6+4 = 10 cm.

Out of that 11 cm by 10 cm rectangle, a cutout is made in the upper right corner. The area of that cutout (in the plane of the front face) is 2 cm high by 4 cm wide.

Then the area of the front face is ...

  (11 cm)(10 cm) -(2 cm)(4 cm) = 110 cm² -8 cm² = 102 cm²

The volume of the prism can be found using the formula ...

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3 0
3 years ago
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Olegator [25]
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example:

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6 0
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Ede4ka [16]

Answer:

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Step-by-step explanation:

Subtract 5x and divide by -6:

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6 0
3 years ago
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almond37 [142]
A and D, sorry if I’m wrong.
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