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valentinak56 [21]
3 years ago
6

9. What is the formula to find the sum of the interior angles for any polygon?

Mathematics
1 answer:
SOVA2 [1]3 years ago
3 0

polygon: (n-2) × 180

n: nonagon

octagon has 8 sides

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I NEED HELP PLEASE HELP ME
spin [16.1K]

Answer:

4/25

Step-by-step explanation:

8/10 = 4/5

2/10 = 1/5

We can multiply these 2 events because they do not depend on each other.

1/5* 4/5 = 4/25

4 0
3 years ago
At the movie theatre, child admission is $5.70 and adult admission is $9.75 . On Friday, 173 tickets were sold for a total sales
storchak [24]

Answer: 94 child tickets

<u>Step-by-step explanation:</u>

Let x represent child tickets

Let y represent adult tickets

Cost Equation: 5.70x + 9.75y = 1306.10

Quantity Equation: x + y = 173

Solve the system of equations using the elimination method:

Multiply the Quantity Equation by -5.70

      5.70x + 9.75y = 1306.10

    <u> -5.70x  - 5.70y</u> = <u>-986.10</u>

                    4.05y = 320.00

                  <u> ÷4.05 </u>   <u>÷4.05    </u>

                           y =   79

x +  y  = 173

x + 79 = 173

x         = 94

7 0
3 years ago
9/4 = blank divided by 4<br><br> please help- what is blank
Mashcka [7]

Answer:

9

Step-by-step explanation:

You gave the answer right in your question

6 0
3 years ago
Read 2 more answers
−px+r=−8x − 2, x=?<br> now i have to do this problem, and i dont know how, help?
Taya2010 [7]

-px + r = - 8x - 2

-px + r + 8x +2 = 0

-px +8x = -r -2

x(8-p) = -r -2

x= \frac{8-p}{-r-2} =

\frac{8-p}{-r-2}

3 0
3 years ago
Fmfrjrjdjejeidisiiiidiidsisiiisi​
SVEN [57.7K]

Answer:

The answer is,

r =  \frac{3t}{t - 1}

Step-by-step explanation:

t =  \frac{r}{ r - 3}

Firstly, you have to get rid of fraction by multiplying (r-3) to both side and expand out:

t × (r-3) = r/(r-3) × (r-3)

rt - 3t = r

Then you have to move all the "r" variables to one side and other variables to the other side:

rt - r = 3t

You can make "r" as a subject by taking out the common term, you can see that the common term on the left is "r" so you can bring out:

r(t-1) = 3t

r = 3t/(t-1)

4 0
3 years ago
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