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3 years ago

14

Translate to a mathematical equation: Two times a number less than four is twenty-eight

1 answer:

adoni [48]3 years ago

5 0

2 x n = 28 - 4 :))) i pretty sure

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The measure of an interor angle of a regular polygon is given. Find the number of sides in the polygon.

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#1

$\\ \sf\longmapsto 120n=(n-2)180$

$\\ \sf\longmapsto 120n=180n-360$

$\\ \sf\longmapsto -60n=-360$

$\\ \sf\longmapsto n=6$

#2

$\\ \sf\longmapsto 160n=(n-2)180$

$\\ \sf\longmapsto 160n=180n-240$

$\\ \sf\longmapsto -20n=-240$

$\\ \sf\longmapsto n=12$

#3

$\\ \sf\longmapsto 144n=(n-2)180$

$\\ \sf\longmapsto 144n=180n-360$

$\\ \sf\longmapsto -36n=-360$

$\\ \sf\longmapsto n=10$

6 0

3 years ago