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LenKa [72]
3 years ago
13

What is the value of X

Mathematics
1 answer:
Dvinal [7]3 years ago
6 0
An exterior angle of a triangle is equal to the sum of the opposite interior 
angles

9x = 5x + 9 + x
9x = 6x + 9
9x - 6x = 9
3x = 9
x = 9/3
x = 3
You might be interested in
The product of 14 and the sum of 30 and an unknown number is equal to-196
Leto [7]
14 + 30 + 152 =196 14+30=44 44-196=152
4 0
3 years ago
What is the answer to C?
OleMash [197]

The diagram of the sequence of circular and square tiles gives;

a) 49

b) 84

c) Will always be odd

<h3>Which method can be used to find the order of the sequence in the pattern?</h3>

Pattern 1

Number of square tiles = 1

Number of circular tiles = 8

Total number of tiles = 9

Pattern 2

Number of square tiles = 4

Number of circular tiles = 12

Total number of tiles = 16

Pattern 3

Number of square tiles = 9

Number of circular tiles = 16

Total number of tiles = 25

  • The number of square tiles required to make pattern <em>n </em>= n²

From the diagram, the number of circular tiles on the left or right side of the square tiles are 2 more than the number of square tiles, while the number of circular tiles on the top or bottom are the same as the number of square tiles, therefore;

  • Number of circular tiles = 2•(n + 2) + 2•n

a) The number of square tiles required to make pattern number 7 = 7² = 49

b) The number of circular tiles needed to make pattern number 20 = 2 × 20 + 2 × (20 + 2) = 84

c) The total number of circular tiles is always even while the number of square tiles has the same characteristics (even or odd) as the pattern number

  • Even + Odd = Odd
  • Even + Even = Even

When the pattern number is odd, the total number of tiles will always be odd. The correct option is therefore;

B. Will always be odd

Learn more about sequence and series here:

brainly.com/question/12668338

#SPJ1

4 0
2 years ago
3 erasers cost $4.41. Write a proportion that would solve for the cost of 4 erasers.
Bess [88]

Answer:

$5.88

Step-by-step explanation:

3 erasers ⇒ $4,41

4 erasers ⇒ $A

A = 4 erasers * $4.41 / 3 erasers

A = $ 5.88

7 0
2 years ago
Read 2 more answers
The picture is the answer i forgot it last time
igor_vitrenko [27]
C is your answer

because (4, -6) is true, and it lies on both lines, which makes both equations true

hope this helps
3 0
3 years ago
Can an integer be a decimal?
Olegator [25]
No, an integer can not be a decimal. They can either be positive or negative numbers.
7 0
3 years ago
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