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
topjm [15]
2 years ago
5

4(x+9)=8x-7 Solve for x

Mathematics
1 answer:
valentina_108 [34]2 years ago
3 0

Answer:

x = 10.75

Step-by-step explanation:

4(x+9)=8x-7

Step 1: Distribute the 4 to the x and 9

4 * x = 4x

4 * 9 = 36

We now have 4x + 36 = 8x - 7

Step 2: add 7 to both sides

36 + 7 = 43

-7 + 7 cancels out

We now have 4x + 43 = 8x

Step 3 subtract 4x from both sides

4x - 4x cancels out

8x - 4x = 4x

We now have 4x = 43

step 4 divide both sides by 4

4x / 4 ( the 4s cancel out and we're left with x )

43/4 = 10.75

We're left with x = 10.75

You might be interested in
Which list shows these lengths in order from greatest to least?
finlep [7]

9514 1404 393

Answer:

  √3/11, π/24, 3/25, 9/100

Step-by-step explanation:

The 2-decimal value of each of the numbers is ...

  9/100 = 0.09

  π/24 = 0.13

  3/25 = 0.12

  √3/11 = 0.16

Then the order from greatest to least is 0.16, 0.13, 0.12, 0.09. In the original form, that is ...

  √3/11, π/24, 3/25, 9/100 . . . . . matches choice B

8 0
3 years ago
the measure of one side of a square is (s+3) inches long. which pair of expressions both represent the perimeter of this square?
stich3 [128]
Answer:
perimeter = 4s + 12 inches
perimeter = 4(s+3) inches

Explanation:
We are given that the side length of the square is s+3 inches
In a square, all sides are equal. This means that all four sides are s+3 inches
Now, to get the perimeter, we would add all four sides as follows:
perimeter = s+3+s+3+s+3+s+3 = 4s + 12 inches
For a square, since all sides are equal, we can simply get the perimeter by multiplying the side length by 4 as follows:
perimeter = 4(s+3) inches

Hope this helps :)

4 0
3 years ago
The angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum o
Airida [17]

Step-by-step explanation:

It is given that the angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum of 540.

<u>Let me define the each terms.</u>

1. We know that each angle in a triangle is 60°, So there is a three angle in a regular triangle.

  • 60° + 60° + 60°
  • 180°

2. We know that each angle in a rectangle, is 90°, So there is a four angle in a regular rectangle.

  • 90° + 90°+90°+90°
  • 360°

Similarly,

  • There is 8 angle in a regular octagon and each angle measurement is 135°.

So, sum of the angles of an octagon = 135° × 8

Sum of the angles of an octagon = 1080°

Therefore, the required sum of the angles of an octagon is 1080°

6 0
3 years ago
a video game arcade offers a yearly membership with reduced rates for game play. A single membership costs $60 per year. Game to
7nadin3 [17]

slope is $0.10            <em>($1.00 per 10 tokens = $0.10)</em>

y-intercept is $60    <em>($60 is the annual fee)</em>

y = .10x + 60            <em>(y = mx + b)</em>  

domain is x ≥ 0        <em>(you can't buy a negative number of token)</em>

range is y ≥ 60        <em>(input the domain (x ≥ 0) to find the range)</em>

Answer: the y-intercept of the function is $60

6 0
3 years ago
Read 2 more answers
A student found the surface area of this pyramid. Surface area = (12)(6) + 1 2 (12)(8) + 1 2 (6)(9.5) = 72 + 48 + 28.5 = 148.5cm
Virty [35]

Answer:

The answer is, The student added only three of the five faces.

Step-by-step explanation:

Hoped it help Have a great day :)

5 0
3 years ago
Other questions:
  • Help worth 25 points
    11·2 answers
  • What is Two-thirds divided by one-sixth? An area model with 4 shaded parts and 2 unshaded parts. The shaded parts are labeled tw
    11·1 answer
  • Suppose that we will randomly select a sample of 106 measurements from a population having a mean equal to 19 and a standard dev
    14·1 answer
  • Anybody please help me with this.... I have a very important grade relying on this
    7·2 answers
  • Does 13, 84, and 86 make a right triangle
    11·2 answers
  • Use the graph to find the slope of the line. Tell with the slope means in this context
    15·1 answer
  • Is the problem, 6y-2x=10 in standard form?​
    5·2 answers
  • In the coordinate plane, ABCD has vertices with coordinates A(1,-1), B(-5,3), C(-3,6),
    6·1 answer
  • A graph has time (years) on the x-axis and height (inches) on the y-axis. A line goes through points (2, 5) and (4, 10).
    11·1 answer
  • What is the additive inverse for 4.5
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!