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mr Goodwill [35]
3 years ago
15

Solve the equation 13d+8=-1

Mathematics
2 answers:
frosja888 [35]3 years ago
8 0
D = -19 over 13 or 19/13
DiKsa [7]3 years ago
8 0

Answer:

-9/13

Step-by-step explanation:

I did this question on Iready

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If there are 13 values in a data set in order from smallest to largest, what is the third quartile of the data set?
Vikki [24]
I am pretty sure the quartile is just the third number in a data set so it would 39? I do not recommend using this I am only 14 after all   <span />
6 0
2 years ago
The interior angle of a regular polvgon is 9 times the size of its exterior angle
Thepotemich [5.8K]
<h3>Answer:   20 sides</h3>

==================================================

Work Shown:

x = exterior angle

9x = interior angle

interior + exterior = 180

9x+x = 180

10x = 180

x = 180/10

x = 18

n = number of sides

n = 360/x

n = 360/18

n = 20

There are <u>20</u> sides to the regular polygon.

Side notes:

  • The formula to determine n only works for regular polygons.
  • A polygon with 20 sides is known as an icosagon.
  • Any pair of adjacent interior and exterior angles are supplementary. They add to 180 degrees.
3 0
1 year ago
What is the GCF of 20, 36 and 48
nlexa [21]
20= 1,2,4,5,10,20
36=1,2,3,4,6,9,12,18,36
48=1,2,3,4,6,8,12,16,24,48
6 0
2 years ago
Use tape diagrams to calculate the solution of 30 = 5w. Then, check your answer.
Aleks04 [339]

Answer:

6

Step-by-step explanation:

<em>if</em><em> </em><em>30 = 5w</em>

then 30/5=w=6

<em>-</em><em>tape</em><em> </em><em>diagrams</em><em> </em><em>in</em><em> </em><em>picture-</em>

7 0
3 years ago
boxes that are 12 inches tall are stacked next to boxes that are 18 inches tall. what is the shortest height as which the two st
olga55 [171]
18 (goes down): 17, 16, 15
12 (goes up): 13, 14, 15

The shortest height at which the two stacks of boxes will be the same height is 15. 

Hope I was able to help!
6 0
3 years ago
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