1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dafna1 [17]
3 years ago
12

12. Find x. (x + 20)° (5x - 8)°​

Mathematics
1 answer:
ololo11 [35]3 years ago
8 0

Answer:

<h2>x = 7</h2>

Step-by-step explanation:

Simplifying

x + 20 = 5x + -8

Reorder the terms:

20 + x = 5x + -8

Reorder the terms:

20 + x = -8 + 5x

Solving

20 + x = -8 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.

20 + x + -5x = -8 + 5x + -5x

Combine like terms: x + -5x = -4x

20 + -4x = -8 + 5x + -5x

Combine like terms: 5x + -5x = 0

20 + -4x = -8 + 0

20 + -4x = -8

Add '-20' to each side of the equation.

20 + -20 + -4x = -8 + -20

Combine like terms: 20 + -20 = 0

0 + -4x = -8 + -20

-4x = -8 + -20

Combine like terms: -8 + -20 = -28

-4x = -28

Divide each side by '-4'.

x = 7

Simplifying

x = 7

You might be interested in
The area of a rectangle a=1(w) is represented by the expression 24x6y15. If the width of the rectangle is 2x3y9, what is the l
natulia [17]

Answer:

Length of rectangle is: Length=12x^3y^6

Step-by-step explanation:

The area of rectangle = 24x^6y^{15}

Width of rectangle = 2x^3y^9

We need to find length of rectangle

The formula used is: Area=Length\times Width

Putting values and finding length

Area=Length\times Width\\24x^6y^{15}=Length\times 2x^3y^9\\Length=\frac{24x^6y^{15}}{2x^3y^9} \\Length=12x^{6-3}y^{15-9}\\Length=12x^3y^6

So, Length of rectangle is: Length=12x^3y^6

8 0
3 years ago
HELP ASAP❗️
algol13

Answer:

number one is c y= -3/4x+8 and b is Formula for hourly rate from salary

To figure out your hourly wage based on your yearly salary, all you do is this: Take your yearly salary and divide that number by 52 (the number of weeks in a year) and then by 40 (the number of hours in a standard work week).

Step-by-step explanation:

8 0
3 years ago
What is an example of interval notation?
lord [1]
When you have to nonation. something
8 0
3 years ago
What is the value of m,the points (2,3),(3,6)and (m,12) are collinear....Please y'all help me out
timurjin [86]

Answer:

m = 5

Step-by-step explanation:

Since the points are collinear, they all lie on the same line and have the same slope between them.

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (2, 3) and (x₂, y₂ ) = (3, 6)

m = \frac{6-3}{3-2} = \frac{3}{1} = 3

Now calculate the slope using 2 other points and equate to 3

(x₁, y₁ ) = (3,  6) and (x₂, y₂ ) = (m, 12)

m = \frac{12-6}{m-3} = \frac{6}{m-3} = 3 ( multiply both sides by m - 3 )

6 = 3(m - 3) ← divide both sides by 3

2 = m - 3 ( add 3 to both sides )

5 = m

4 0
3 years ago
Read 2 more answers
Find a equation with a slope of -6
kumpel [21]

Answer:

y= -6x+2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • During a period of 14 minutes, a music station played 2 minutes of commercials. What is the ratio of music they played to commer
    10·2 answers
  • A=(−3,2,3)A=(−3,2,3)B=(−3,5,2) P=(2,−3,2) Q=(2,0,1) Is PQ−→−PQ→ equivalent to AB−→−AB→? A. no B. yes
    11·1 answer
  • West High School was considering a change to the start time of the school day from 7:30 AM to 8:30 AM
    6·2 answers
  • What is two over eight minus 1 over 2
    6·2 answers
  • Explain and demonstrate how to change 4/20 into a percentage
    11·2 answers
  • Can someone help me please
    10·2 answers
  • What is the value of x?<br> 2x+20<br> 3(x-10)
    6·1 answer
  • Please help due pretty soon​
    5·1 answer
  • Ivan runs each lap in 4 minutes. He will run at most 28 minutes today. What are the possible numbers of laps he will run today?
    15·1 answer
  • If R is the midpoint of QS, RS= 2x - 4, ST = 4x-1, and RT = 8x - 43, find QS.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!