1 answer:
Answer:
k = 10
Step-by-step explanation:
There are 180 degrees in a straight line, so ZYX must be 85 degrees. There are also 180 degrees in a triangle, so YZX + ZXY = 115.
4k + 5 + 6k + 10 = 115
10k + 15 = 115
10k = 100
k = 10
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I think this should be the answer
