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Gnoma [55]
3 years ago
5

The sum of the measures of two angles is 180°.

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
8 0
So first make an equation

180 = 3a + 2a - 25
combine like terms
180 = 5a - 25
add 25 to both sides
205 = 5a
divide both sides by 5
41 = a

now substitute 41 into the two angles
3(41) = 123
2(41) - 25 = 82 - 25 = 57

so one angle is 123 degrees
the other angle is 57 degrees

to check it, just add 123 + 57 = 180
yep! its correct

i hope this helps!!

Degger [83]3 years ago
5 0
A should be here :brainly.com/question/2121320
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3 0
3 years ago
19 + 11 - 12² ÷ 3 (12 - 9) · 11)) - 7 =
katovenus [111]

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First, subtract the numbers in the parentheses, then multiply by 11.

(12 - 9) = (3)

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Now, just multiply 33 by 3, and then square 12 (12 x 12).

19 + 11 - 144 ÷ 99 - 7

Now, you can divide 144 by 99, this is an infinite number, so..

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Finally add, then subtract.

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The final answer is 21.545.

7 0
2 years ago
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