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
prisoha [69]
2 years ago
8

Find the value of x.​

Mathematics
1 answer:
tankabanditka [31]2 years ago
3 0

Answer:

13

Step-by-step explanation:

(11x - 15) + (5x - 13) = 180 (Since a straight line = 180°)

11x + 5x - 15 - 13 = 180 (Combine like terms)

16x - 28 = 180 (Simplify)

16x - 28 + 28 = 180 + 28 (Add 28 to both sides)

16x = 208 (Simplify)

16x ÷ 16 = 208 ÷ 16 (Divide both sides by 16)

x = 13 (Simplify)

You might be interested in
How to subtract 4/5 and 3/10 in simplest form
g100num [7]
First you must find a common denominator. In this case 10 will work. You then multiply the top number by whatever you multiplied the bottom number by. This is shown below:
4/5- 3/10 = 8/10- 3/10 
You can now solve this to get 5/10. This answer can then be reduced to 1/2. 
3 0
2 years ago
Read 2 more answers
What is the rule for the reflection? rx-axis(x, y) → (â€"x, y) ry-axis(x, y) → (â€"x, y) rx-axis(x, y) â†
malfutka [58]

The rule for the reflection is explained below. The correct option will be x-axis (x, y) = (x, -y).

In real life, we think of a reflection as a mirror image, like when we look at own reflection in the mirror.

This idea of reflection correlating with a mirror image is similar in math.

<h3>Reflection Over the X Axis </h3>

A reflection of a point, a line, or a figure in the X axis involved reflecting the image over the x axis to create a mirror image.

In this case, the x axis would be called the axis of reflection.

The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same.

When point P with coordinates (5,4) is reflecting across the X axis and mapped onto point P’, the coordinates of P’ are (5,-4).

Notice that the x-coordinate for both points did not change, but the value of the y-coordinate changed from 4 to -4.

<h3>Reflection Over the Y Axis </h3>

A reflection of a point, a line, or a figure in the Y axis involved reflecting the image over the Y axis to create a mirror image.

In this case, the Y axis would be called the axis of reflection.

The rule for reflecting over the Y axis is to negate the value of the x-coordinate of each point, but leave the y-value the same.

when point P with coordinates (5,4) is reflecting across the Y axis and mapped onto point P’, the coordinates of P’ are (-5,4).

Notice that the y-coordinate for both points did not change, but the value of the x-coordinate changed from 5 to -5.

Hence the correct option is r x-axis(x, y) = (x, -y).

For more details on reflection follow the link:

brainly.com/question/4998744

6 0
2 years ago
if the diameter of the concentric circles as shown in the given figure are in the ratio 1:2:3 then find the ratio of the areas o
Monica [59]

Answer:

1 : 4 : 9

Step-by-step explanation:

Given the ratio of diameters = a : b , then

ratio of areas = a² : b²

Here ratio of diameters = 1 : 2 : 3 , so

ratio of areas = 1² : 2² : 3² = 1 : 4 : 9

5 0
3 years ago
Read 2 more answers
Your average walking speed when you step 1 meter in 0.5 second
hram777 [196]
Velocity = distance/time
v = d/t = 1/0.5 = 2m/s
4 0
3 years ago
Is 0/12 a rational or irrational number
kondor19780726 [428]
I feel like it would be rational because 0/12 = 0, and 0 is a rational number.
6 0
3 years ago
Other questions:
  • The width of a rectangle is 7 inches shorter than its length. The area is 78 square inches. What are the dimensions of the recta
    7·1 answer
  • I need help finding the answer
    14·2 answers
  • Please help I need answers ASAP
    13·1 answer
  • Question 7 (5 points)
    12·2 answers
  • The width of a rectangle is shown below: A coordinate plane with a point A at negative 3, 3 and C at negative 3, negative 2. If
    12·1 answer
  • Pls help! In the figure below, m∠ABC = 57 degrees and m∠DAB =116 degrees. What is m∠ABC?
    15·2 answers
  • Need help with question 7 and 8 with awnser please check photo for problems
    8·1 answer
  • On the first 7 statistics tests of the semester, Jamal
    7·1 answer
  • Rhianna is baking a cake and some cookies for a party. She used cups of flour for the cake. For each tray of cookies, she needs
    12·1 answer
  • Which graph represents (x,y)-pairs that make the equation y = 3x - 2 true?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!