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Flura [38]
3 years ago
8

Can somebody please help me with this.!

Mathematics
2 answers:
choli [55]3 years ago
7 0
An easier way to do this is to look at the number of sides (9) and subtract it by 2 (7). Then you can just multiply that number by 180
this works for every polygon
densk [106]3 years ago
6 0

Answer:

1260

Step-by-step explanation:

First you will need to find the amount of sides of the polygon:

(After looking it is 9)

Each angle of the side of a nonagon is 140 degrees.

Multiply by 9 since you can make 9 triangles:

140 x 9 = 1260

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Iteru [2.4K]

Answer:

y^2+4y+8+22/y-2

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5 0
3 years ago
At the city museum, child admission is $6.10 and adult admission is $9.30 . On Sunday, four times as many adult tickets as child
dalvyx [7]

Answer:

21 child tickets

Step-by-step explanation:

For this problem, you'd use a system of equations.

First, define your variables.

x = # of child tickets sold

y = # of adult tickets sold

There were 4 times as many adult tickets (y) as child tickets (x) sold, so:

4 x = y

4 x - y = 0

93 (4 x - y = 0)

372 x - 93 y = 0

The total revenue was $909.30, adult tickets were $9.30 each, child tickets were $6.10 each, so:

6.10 x + 9.30 y = 909.30

10 (6.10 x + 9.30 y = 909.30)

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433 x = 9093

433 x / 433 = 9093 / 433

x = 21

3 0
2 years ago
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