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
Colt1911 [192]
3 years ago
15

Find angle ABC this is for geometry i need help please

Mathematics
2 answers:
zmey [24]3 years ago
8 0

2x+5x+5=180

7x+5=180

7x=175

x=25

angle A,B,C=130

hope this helps

P.S can you give me a brainiest pls!!!!!!

Levart [38]3 years ago
3 0

A straight line is also called a supplementary angle which equals 180 degrees. Angle DBC is a supplementary angle and angles ADB and ABC equals 180 degrees.

Your starting equation would be : 2x + 5x + 5 = 180

From here, combine like terms : 7x + 5 = 180

Subtract 5 from both sides : 7x = 175

Divide 7 on both sides : x = 25

From here, you need to insert the value of x (which is 25) into the equation for angle ABC (which is 5x + 5)

5(25) + 5

Angle ABC = 130 degrees

To ensure you have the correct answer, you can also find angle ADB (50) and add both values. If they add up to 180, you know for sure that you have the correct answer.

50 + 130 = 180 The answer is correct!

Just to be clear, angle ABC = 130 degrees

You might be interested in
A rug is to be centered in a room so that the border around it is of a consistent width on all four sides. If the room is 10 ft
aleksley [76]

Answer:

The width of the border can be 9 feet or 3.5 feet.

Step-by-step explanation:

Let the width be x

Length of room = 10 feet

Breadth of room = 15 feet

Length of rug = 10-2x

Breadth of rug = 15-2x

Area of rug = (10-2x)(15-2x)  

We are given that the area of the rug is 24 square feet.

So,  (10-2x)(15-2x)=24 ---A

150-20x-30x+4x^2=24

150-24-50x+4x^2=0

126-50x+4x^2=0

2(x-9)(2x-7)=0

x=9,\frac{7}{2}

x=9,3.5

Substitute x =9 in A

(10-2(9))(15-2(9))=24

24=24

LHS = RHS

Substitute x = 3.5

(10-2(3.5))(15-2(3.5))=24

24=24

LHS = RHS

So, The width of the border can be 9 feet or 3.5 feet.

7 0
3 years ago
In 2010 a family membership in a country club cost $18,000 if this cost increased $475 each year since 2010, then how much will
kvasek [131]

Answer:

21,800

Step-by-step explanation:

Because 475 x 8 equals 3800 you add 3800 to 18,000 and get 21,800

4 0
3 years ago
What is y=\dfrac{2}{3}x+4y=
lara [203]

Answer:

12y+x-12=0

Step-by-step explanation:

If I'm not mistaken by the question, we have

x+4y=\dfrac{2}{3}x+4

Multiply through by the LCM of all the denominators to clear the fractions. Since we have only one fraction, we multiply through by its LCM (3)

3\timesx+3\times4y=3\times\dfrac{2}{3}x+3\times4

3x+12y=2x+12

Putting all terms on the LHS (left hand side) and evaluating,

12y+x-12=0

5 0
3 years ago
What is the range of the function on the graph?
soldier1979 [14.2K]

Answer:

All are real numbers

i had this graph in my quick answers book hope so its correct

6 0
3 years ago
Have a wonderful day :) and here are free pts to make your day better &lt;3<br> 11 x 11 = ?
Harman [31]

Answer:

121

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Plz help ASAP
    6·1 answer
  • What is the constant of variation for the quadratic variation? x 2 3 4 5 6 y 24 54 96 150 216
    9·1 answer
  • Which face of the net will be the right side of the prism when the net is folded? Side C is the right side of the prism. A B C D
    10·1 answer
  • Fatima plotted one side of a heptagon on a grid. the points (-8,1) and (-8,8) are joined to form a side of the heptagon. Fatima
    6·2 answers
  • The side of each of the equilateral triangles in the figure is twice the side of the central regular hexagon. What fraction of t
    11·1 answer
  • A laboratory technician needs to make a 63-liter batch of a 20% acid solution How can the laboratory technician combine a batch
    6·2 answers
  • Write the sentence as an inequality. A number t multiplied by -4 is at least −2/5
    12·1 answer
  • 1/2 w +2;w=1/9<br> Help
    5·1 answer
  • 6 2/7 divided by 2 3/4
    11·2 answers
  • a new hospital in cedarburg starts out with 12 junior residents and 6 senior residents on its staff. management plans to hire ad
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!