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Zanzabum
3 years ago
10

Both are x= 27. x= 28.x=

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
3 0

Answer:

Step-by-step explanation:

<u>27.</u> the sum of 2 complementary angles=90

8x-17+5x-10=90

13x=90+27

13x=117            <u>x=9 </u>

<u>28. </u> the sum of supplementary angles=180

17x-12+3x-48=180

20x=180+60

20x=240

<u>x=120</u>

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