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kondor19780726 [428]
3 years ago
11

|5n-6|+20 =7 what is the solution for this

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

Simplifying

5n + -9 + 6 = -20

Reorder the terms:

-9 + 6 + 5n = -20

Combine like terms: -9 + 6 = -3

-3 + 5n = -20

Solving

-3 + 5n = -20

Solving for variable 'n'.

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

Add '3' to each side of the equation.

-3 + 3 + 5n = -20 + 3

Combine like terms: -3 + 3 = 0

0 + 5n = -20 + 3

5n = -20 + 3

Combine like terms: -20 + 3 = -17

5n = -17

Divide each side by '5'.

n = -3.4

Simplifying

n = -3.4

Step-by-step explanation:

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​A cable company has a one time installation fee and then a monthly charge to use their service. The total cost of modeled by th
SpyIntel [72]

Answer:

130=monthly charge

119=one time installation fee

Step-by-step explanation:

119 is the y-intercept and in problems like these, it is always the one time fee. 130 is the monthly payment because it has an x, which could account for the number of months. For example , say six months passed, you could multiply 130 * 6 to get the monthly fee for six months. I hope that makes sense!

6 0
2 years ago
How to find minimum and maximum of this equation.
Westkost [7]

Using it's vertex, the maximum value of the quadratic function is -3.19.

<h3>What is the vertex of a quadratic equation?</h3>

A quadratic equation is modeled by:

y = ax^2 + bx + c

The vertex is given by:

(x_v, y_v)

In which:

  • x_v = -\frac{b}{2a}
  • y_v = -\frac{b^2 - 4ac}{4a}

Considering the coefficient a, we have that:

  • If a < 0, the vertex is a maximum point.
  • If a > 0, the vertex is a minimum point.

In this problem, the equation is:

y + 4 = -x² + 1.8x

In standard format:

y = -x² + 1.8x - 4.

The coefficients are a = -1 < 0, b = 1.8, c = -4, hence the maximum value is:

y_v = -\frac{1.8^2 - 4(-1)(-4)}{4(-1)} = -3.19

More can be learned about the vertex of a quadratic function at brainly.com/question/24737967

#SPJ1

3 0
2 years ago
Freee pointsss iggg :)
OlgaM077 [116]
Yayyy thanks a lottt can i also get brainliest
8 0
3 years ago
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Work out the size of the angle marked x​
natali 33 [55]

Answer:

X=60

Step-by-step explanation:

Sum of the Quadrilateral interior angles:360

360-70-130-100=60

8 0
3 years ago
An architect designs a diagonal path across a rectangular patio. The path is 29 meters long. The width of the patio is x meters,
photoshop1234 [79]
The answer for this question is D 
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3 years ago
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