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ser-zykov [4K]
4 years ago
6

——PLEASE HELP ASAP———

Mathematics
2 answers:
Scrat [10]4 years ago
5 0

Answer:

Angle A (42) Angle B (12.2)

Step-by-step explanation:

alexgriva [62]4 years ago
3 0

Answer:

x=9

Step-by-step explanation:

Angle A = 48 degrees, Angle B = 132 degrees

(4x + 12) + (15x - 3) = 180

19x +9 = 180

19x = 171

x = 9

Angle A: 4x + 12 --> 4(9) + 12 --> 36 + 12 --> 48

Angle B: 15x - 3 --> 15(9) - 3 --> 135 - 3 --> 132

48 + 132 = 180

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