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PolarNik [594]
3 years ago
13

Didn't understand concept in this problem

Mathematics
2 answers:
Charra [1.4K]3 years ago
6 0
<span>(n-2)180=sum of the interior angles. 

Where n=number of angles of a regular polygon.

(n-2)180=2340

divide both sides by 180 and get

n-2=13

add 2 to both sides and get

n=15 Therefore, this polygon has 15 sides.</span>
Leviafan [203]3 years ago
6 0
To find the sum of the interior angles of a polygon, use the formula (n-2) x 180. Plug in the numbers to get your sum. 11-2=9 x 180 =1620, so it's not A. 13-2=11 x 180= 1980, so it's not B. 15-2=13 x 180 = 2340. Your answer is  C.15.
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Leokris [45]

Answer:

56

Step-by-step explanation:

I assume each person in the group must have 1 pencil AND 1 eraser each.

Since you have more pencils than erasers, then the limiting factor is the number of erasers. So a group of 56 people will have 1 pencil And 1 eraser and Clare will have 24 pencils left over (assuming Clare has her own pencil and eraser - if not then the group size is 55 assuming Clare is not in the group)

sorry if it's too confusing

6 0
3 years ago
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bija089 [108]

Answer:what did you get

Step-by-step explanation:

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3 years ago
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lawyer [7]

Answer:

The first one is incorrect

Step-by-step explanation:

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3 0
3 years ago
jeffrey purchased a card for $180 that gives him 20 visits to a new gym and includes a one-time fee for unlimited use of the sau
yawa3891 [41]

There is many ways to do this but i did it this way.

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7 0
4 years ago
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MAX POINTS!!! Write and solve a system of equations. Be sure to label the variables. The difference of two numbers is two. Two t
Cerrena [4.2K]

Answer:

  • 5 and 3

Step-by-step explanation:

Let the numbers be x and y.

<u>The equations are:</u>

  • x - y = 2
  • 2x + y = 13

<u>Add up the equations to eliminate y and solve for x:</u>

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  • 3x = 15
  • x = 15/3
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<u>Now find the value of y:</u>

  • y = x - 2
  • y = 5 - 2
  • y = 3
3 0
3 years ago
Read 2 more answers
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