3 years ago

Each exterior angle of a regular polygon measures 20°. How many sides

Mathematics

2 answers:

White raven [17]3 years ago

5 0

Answer:

Step-by-step explanation:20

blsea [12.9K]3 years ago

4 0

The answer for this question is 20

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Andrew is cutting a piece of fencing for his yard. How many pieces of fence that are 5 1/3 inches long can he cut from a section

IrinaVladis [17]

Answer:

2 37/40

Step-by-step explanation:

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2 years ago

What is the solution of the system x − 3y = –13 and 5x + 7y = 34? A. `x = (6)/(5)`, y = 4 B. `x = (7)/(2), y = (9)/(2)` C. `x =

Masteriza [31]

For this case we have the following system of equations:

$x-3y = -13\\5x + 7y = 34$

From the first equation we clear "x":

$x = -13 + 3y$

We substitute in the second equation:

$5 (-13 + 3y) + 7y = 34$

We apply distributive property:

$-65 + 15y + 7y = 34$

We add similar terms:

$-65 + 22y = 34$

We add 65 to both sides:

$22y = 34 + 65\\22y = 99$

We divide between 22 on both sides:

$y = \frac {99} {22}\\y = \frac {9} {2}$

We look for the value of the variable "x":

$x = -13 + 3 \frac {9} {2}\\x = -13 + \frac {27} {2}\\x = \frac {-26 + 27} {2}\\x = \frac {1} {2}$

Thus, the solution of the system is:

$(x, y): (\frac {1} {2}, \frac {9} {2})$

ANswer:

$(x, y): (\frac {1} {2}, \frac {9} {2})$

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3 years ago

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Which expression is equivalent to 1/8x−1/2 ? 1/8(x−1/2) 1/8(x−4) 1/8(x−1/4) −1/8(x−4)

s344n2d4d5 [400]

The correct answer is B

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3 years ago

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Mkey [24]

Answer:

D is the right answer.

Step-by-step explanation:

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3 years ago

Please solve the system of equations!!

kherson [118]

Answer:

x=6

y=4

Step-by-step explanation:

plz mark brainliest

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2 years ago