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Dennis_Churaev [7]
3 years ago
10

What is the value of x in the equation 13x - 2(8 + 5x) =12 - 11x

Mathematics
2 answers:
grin007 [14]3 years ago
8 0

Answer: x = 2

Step-by-step explanation:

The given equation : 13x - 2(8 + 5x) =12 - 11x

T o solve the above equation for x  , we use BODMAS ( Bracket → Of → Divide→ Multiply→ Add→ Subtract)

According to BODMAS , we first simplify brackets , we get

13x - 2(8) - 2(5x) =12 - 11x [∵ (-)(+)=(-)]

\Rightarrow\ 13x - 16 - 10x =12 - 11x

Add 11x and 16 on both sides and combine like terms,

\Rightarrow\ 13x- 10x +11x=12 +16

\Rightarrow\ 14x=28

Divide both sides by 14 , we get

x=2

Hence, the value of x = 2

Vaselesa [24]3 years ago
7 0

13x - 2(8+5x)=12 - 11x  do the distributive property first

13x - 16 -10x = 12 - 11x combine like terms

3x-16=12-11x get all x's on one side and regular nubers on the other so add 11x and 16 to both sides.

14x=28  divide both sides by 14

x=2


Hope that helps

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I need help with this problem down below
Misha Larkins [42]

Answer:

y = 4

Step-by-step explanation:

Given:

y = \frac{7x + 1}{3x - 6},

To find the value of y, let's find x by solving 3x = 15.

3x = 15

Divide both sides by 3

x = 15/3

x = 5

Plug in the value of x into y = \frac{7x + 1}{3x - 6}

y = \frac{7(5) + 1}{3(5) - 6}

y = \frac{35 + 1}{15 - 6}

y = \frac{36}{9}

y = 4

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3 years ago
Please help solve for PQ.
DerKrebs [107]
This problem cannot be solved unless we are given figure NPQR is a rhombus.
In that case, then all sides are equal, meaning 
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Solve for x
9x-5x=16+32
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8 0
3 years ago
HELP
andreev551 [17]

Answer:

A. y = 80x

B. g(x) = 80x

C. To graph the equation, plot a point at (0,0) and a point at (1,80). Connect the points. Continue adding points by moving up $80 and over 1 day.

Step-by-step explanation:

Part A:  

To write an equation, use y= mx where m is the slope, x is the number of days, and y is the rent cost.

x and y remain the same in the equation.

To find m, use the slope formula with (5,465) and (7, 625).

m=\frac{y_2-y_1}{x_2-x_1}= \frac{625-465}{7-5} =\frac{160}{2} =80

It costs $80 a day.

The equation is y = 80x.

Part B:  

Function notation replaces Y as g(x). So the equation is g(x) = 80x.

Part C:

To graph the equation, plot a point at (0,0) and a point at (1,80). Connect the points. Continue adding points by moving up $80 and over 1 day.


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3 years ago
Read 2 more answers
In the right triangle ABC shown, c=17ft and angle A=30 degrees Determine side a
jekas [21]

Using relations in a right triangle, considering c as the hypotenuse, we have that the length of side A is: a = 8.5\sqrt{3}

<h3>What are the relations in a right triangle?</h3>

The relations in a right triangle are given as follows:

  • The sine of an angle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.
  • The cosine of an angle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.
  • The tangent of an angle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.

From the information given, we can build the following relation:

cos(A) = a/c.

\frac{\sqrt{3}}{2} = \frac{a}{17}

a = \frac{17\sqrt{3}}{2}

a = 8.5\sqrt{3}

More can be learned about relations in a right triangle at brainly.com/question/26396675

#SPJ1

6 0
1 year ago
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