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Olenka [21]
3 years ago
11

PLSSS ANSWER 50 points

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
8 0

Answer:

18

Step-by-step explanation:

90 % 5 = 18 so A would measure 90º

MAXImum [283]3 years ago
6 0
X = 11.75

5x + 3x -4 + 90 =180
8x + 86 =180
8x = 94
X= 11.75

5x = 5(11.75) = 58.75

3x - 4 = 3(11.75) -4
35.25 -4 = 31.25

58.75 + 31.25 + 90 = 180
90 + 90 = 180
180 = 180

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