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
podryga [215]
3 years ago
10

How would I do this? What would it be?

Mathematics
1 answer:
Igoryamba3 years ago
7 0

Answer: x=80

Step-by-step explanation:

By definition, the sum of the exterior angles of a polygon is 360 degrees.

Knowing this, you can write the following equation:

(x+8)+(2x+12)+(x+20)=360

Then, you must solve for "x" in order to find its value. To do it, you can follow these steps:

1. You need to add the like terms:

(x+8)+(2x+12)+(x+20)=360\\\\4x+40=360

2. Now, subtract 40 from both sides of the equation:

4x+40-(40)=360-(40)\\\\4x=320

3. Finally, you must divide both sides of the equation by 4. Then:

\frac{4x}{4}=\frac{320}{4}\\\\x=80

You might be interested in
Taina, Luther, and Della are tapping a balloon to each other in the air, trying to keep it from touching the ground. The distanc
OLga [1]
<span>a. m∠L=58.1m∠L=58.1, m∠T=88.5m∠T=88.5, m∠D=33.4m∠D=33.4</span>
4 0
3 years ago
Read 2 more answers
Which is a compound event?
Annette [7]
The second option i believe is correct

8 0
3 years ago
The length of a rectangular field is 7 m less than 4 times the width. The perimeter is 136 m. Find the width and the length
Helga [31]

Answer:

Step-by-step explanation:

Represent the width by W.  Then, "The length of a rectangular field is 7 m less than 4 times the width" expressed symbolically is

L = 4W - 7 (dimensions in meters)

Recall that the perimeter formula in this case is P = 2L + 2W, and recognize that the perimeter value is 136 m.  After substituting 4W - 7 for L, we get:

136 m = 2(4W - 7) + 2W, or

136 = 8W - 14 + 2W, or

150 = 10W        These three equations are equivalent mathematical statements.

150 = 10W reduces to W = 15 (meters).

Part A:  the independent variable is W, the width of the field.

Part B:  The mathematical statement is 136 m = 2(4W - 7) + 2W, which after algebraic manipulation becomes 150 = 10W.

Part C:  The above equation can be solved for W:  W = 15 meters.  This is the value of the independent variable.

6 0
2 years ago
What is  the length of a line segment with endpoints of 19 and –39
Vlad [161]
19-(-39)
19+39=58
is solution as
the two end points are 19 and -39 we should subtract then we get the distance between
6 0
3 years ago
Read 2 more answers
Factorize completely <br> 81k^2 - m^2
Genrish500 [490]

81k^2 - m^2 factors to

(9k + m)(9k - m)

Prove this by FOILing.

First - 81k^2

Outer - (-9km)

Inner - 9km

Last - (-m^2)

Put it into equation form

81k^2 - 9km + 9km - m^2

And combine terms to get the original equation,

81k^2 - m^2.

⭐ Answered by Hyperrspace (Ace) ⭐

⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐

⭐ If you have questions, leave a comment, I'm happy to help! ⭐

7 0
3 years ago
Read 2 more answers
Other questions:
  • I need some help with this math question
    6·1 answer
  • On a number line, point A has a coordinate of −6, and point B has a coordinate of 2. Which is the coordinate of point M, the mid
    8·2 answers
  • What is 2819 divided by 55
    9·2 answers
  • WILL MARK BRAINLIEST
    12·1 answer
  • Copy the proof on paper, mark the givens in the diagram, and fill in the blanks to complete the proof.
    11·2 answers
  • Rod is saving Php2000 in a bank at the end of each month which gives an interest of 1% compounded monthly.How much is the saving
    5·1 answer
  • Michael has 2 hats, 3 shirts, and 8 pants. How many different ways can he wear the outfits if he wears one of each?
    13·1 answer
  • WHAT WOULD THIS BEEEE!!
    15·1 answer
  • How to convert 4.5 into a decimal
    6·1 answer
  • 5x- 4y +2z when x= 8,y =3 and z =3
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!