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Phoenix [80]
3 years ago
11

Use the marked parallel lines to find the value of y in the diagram below (1 point)

Mathematics
1 answer:
Inessa [10]3 years ago
7 0
2x + 5 = 3x - 45                    [alternate interior angles]
3x - 2x = 5 + 45
x = 50

4y - 1 + 2x + 5 = 180                [supplementaly angles]
4y + 2(50) + 4 = 180
4y + 100 = 176
4y = 76
y = 19
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