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Alexus [3.1K]
3 years ago
12

Help me out hereeeeeeeeeeeeeeeeeeee

Mathematics
1 answer:
Kobotan [32]3 years ago
3 0

9514 1404 393

Answer:

  (d)  (8, 40)

Step-by-step explanation:

A pentagon has 5 sides. 8 of them will have 8×5 = 40 sides. The ordered pair representing (pentagons, sides) will be ...

  (8, 40) . . . . . matches the last choice

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3 years ago
Pleaseeee i will mark brainlesttttt<br> solve this system of equations <br> 12x−15y=14 8x−15y=6
Sphinxa [80]

Answer:

x = 2 and  y = \frac{2}{3}

Step-by-step explanation:

To solve this system of equation, we will follow the steps below;

We will use both elimination and substitution method to solve this system of equations

12x−15y=14 ------------------------------------------------------------------------(1)

8x−15y=6 --------------------------------------------------------------------------(2)

subtract equation (2) from equation (1)

(By doing that the y  variable will be eliminated)

4x = 8

Divide both-side of the equation by 4

4x/4 = 8/4

x = 2

Substitute x =2 into equation (2) and then solve for y

8x−15y=6

8(2)−15y=6

16 - 15y = 6

subtract 16 from both-side of the equation

16 - 16- 15y = 6-16

-15y = -10

Divide both-side of the equation by -15

-15y/-15  = -10/-15

y = \frac{2}{3}

x = 2 and  y = \frac{2}{3}

3 0
3 years ago
The measure of 13 of the 14 angles of a 14-gon add up to 2012 degrees. What must the fourteenth angle measure be
skelet666 [1.2K]
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5 0
3 years ago
What does -m+8=4m-7<br>equal <br>​
Olegator [25]

Answer:

3

Step-by-step explanation:

-m+8=4m-7

8=4m-(-m)-7

8=4m+m-7

8=5m-7

5m=8+7

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3 years ago
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Answer: 110

Step-by-step explanatio

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