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
dlinn [17]
2 years ago
7

How do I find the value of x?​

Mathematics
1 answer:
garik1379 [7]2 years ago
8 0

Answer: x = 15

Step-by-step explanation:

The formula for calculating the sum of the interior angles of a regular polygon is: (n - 2) × 180°. Where n is number of sides.

sum of angles = (n - 2) × 180

sum of angles = (7 - 2) × 180

sum of angles = 5 × 180

sum of angles = 900°

Now to find the value of x, we have to set each of the interior angles, added up, equal to 900°:

7x + 1 + 10x + 6x + 7 + 10x - 9 + 9x + 4 + 8x + 10 + 9x + 2 = 900

Combine like terms:

(7x + 10x + 6x + 10x + 9x + 8x + 9x) + (1 + 7 - 9 + 4 + 10 + 2) = 900

59x + 15 = 900

59x + 15 - 15 = 900 - 15                     subtract 15 from both sides

59x = 885                                  

59x/59 = 885/59                               divide by 59 on both sides

x = 15

You might be interested in
The distance traveled by a falling object is modeled by the equation below, where s is the distance fallen, g is gravity, and t
iren [92.7K]

Answer:

meters per seconds squared

Step-by-step explanation:

seconds squared cancel out and you're leftvwith just meters when

meters/seconds squared is multiplied with the seconds squared in t^2

g means gravity and

gravity is 9.8 meters per second squared

nasa

4 0
2 years ago
The price of heating oil rose from $1.10 per gallon to $1.43 per gallon. What is the percent of
ZanzabumX [31]

Answer:

30% increase

Step-by-step explanation:

1.43 - 1.10 = 0.33

0.33 = 30% of 1.10

6 0
2 years ago
A bottle contains 120 fluid ounces
inessss [21]

Answer:

B. 4.05 liters

Step-by-step explanation:

4 0
3 years ago
Write the three numbers less then 40 that have 2 and 5 as factors
ozzi
No. which have factors 2 & 5 have 2 & 5 as their prime factor
therefore, No. are :
2*5 = 10
2*5*2 = 20
2*5*3 = 30
3 0
3 years ago
Hey! please help i’ll give brainliest
Natalka [10]

Answer:

A

hope this helps

have a good day :)

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • What is the perimeter of the square?<br>A.32 m<br><br>B.16 m<br><br>C.64 m<br><br>D.48 m​
    14·2 answers
  • Given the following system of equations, identify the type of system. x + y = 6 y = 3 - x
    14·1 answer
  • An eastbound car is going 4 miles per hour faster than an westbound car. The cars are 208 miles apart 2 hours after passing each
    14·1 answer
  • Tiffany is solving an equation where both sides are quadratic expressions. If the graph of one quadratic opens upward and the ot
    12·2 answers
  • Perpendicular to x = 3<br>Passes through (-3,-1)​
    11·1 answer
  • You buy a shirt at Kohl’s that costs 27.50 but it’s 20% off. How much is the new price of the shirt
    15·2 answers
  • Please help me! <br> Will give brainlst :)
    8·1 answer
  • Help meeeeeeeeeeessss​
    8·1 answer
  • Are all proportional relationships functions?
    15·1 answer
  • Help question is in picture will mark brainliest
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!