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
elena-s [515]
3 years ago
13

What is the value of x

Mathematics
2 answers:
larisa86 [58]3 years ago
6 0

x = 20°

<u>The total sum of interior angles in a triangle is 180°</u>

  • x + 5 + 7(x) - 5 + x = 180°
  • x + 7(x) + x + 5 - 5 = 180°
  • 9(x) = 180°
  • x = 20°
Rus_ich [418]3 years ago
3 0

Answer:

D)  x = 20

Step-by-step explanation:

<u>Theorem</u>

The sum of the interior angles of a triangle is 180°

<u>Solution</u>

Add the angles and equate to 180:

⇒ (x + 5) + (7x - 5) + x = 180

Collect like terms:

⇒ x + 7x + x + 5 - 5 = 180

Combine like terms:

⇒ 9x = 180

Divide both sides by 9:

⇒ x = 20

You might be interested in
Select all the correct locations on the map.
Bingel [31]
India and africa (i think the third one is arabia but i'm not sure)
4 0
3 years ago
Read 2 more answers
(-1, 7) and (2, -2) find the slope between each pair of points
vovikov84 [41]

Answer:

-9/3 or -3

Step-by-step explanation:

6 0
3 years ago
Need help on 6th grade edge really need help worth my grade also i have more questoins so pls help
Natalka [10]
A^2+24^2=25^2

a^2+576=625

a^2=49 *square root both sides*

a=7 so the answer would be option A
3 0
3 years ago
Find the measure of the complement of an angle that measures 64°.
77julia77 [94]
90 - 64 = ? ...................

6 0
3 years ago
Which statement about the angle measure is true
Delicious77 [7]

Answer:

D

Step-by-step explanation:

each angle of the triangle is 95° and the second angle has to be in alphabetical order

8 0
4 years ago
Other questions:
  • Find the value of each value
    5·1 answer
  • PLS HELP ME ASAP FOR 26!! (MUST SHOW WORK!!) + LOTS OF POINTS!! / SHOW THE STEPS MEANING, U CANT SAY A*B equals c SHOW IT
    9·1 answer
  • The radioisotope Phosphorus-32 is used in leukemia therapy. The half-life of this isotope os 14.26 days. Which equation determin
    12·1 answer
  • How do you write the vertex form equation of the parabola #y=2x^2 +11x-6#?
    10·1 answer
  • What is 7.2310 in word form
    5·1 answer
  • How do u multiply and subtract and add fractions
    6·2 answers
  • Factorise 3x^2-6x<br> Thanksssss
    8·2 answers
  • What is the difference between a fossil and an artifact?
    5·1 answer
  • The angle of depression at a point on the ground from the top of a building is 60°. If the point is 36m far from the foot of the
    13·2 answers
  • EOC 2.27
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!