24-03-2020
Mathematics

contestada

One angle measures nine more than six times a number. A sequence of rigid motions maps the angle onto another angle that described as being 30 less than nine times the number. what is the measure of the angle in degrees?

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nilayoner98 nilayoner98

24-03-2020

Answer:

Step-by-step explanation: one angle is 6x + 9 also equals to 9x -30

9x - 30 = 6x + 9

3x = 39, x = 13

Angle is 6×13+9 = 87

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