danna756 danna756

25-11-2020
Mathematics

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In ARST, mZR = (5x + 15)", mZS = (6x + 8)°, and mZT = (4x + 7)º.
What is the value of x?

In ARST mZR 5x 15 mZS 6x 8 and mZT 4x 7º What is the value of x class=

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xenia168 xenia168

25-11-2020

Answer:

10

Step-by-step explanation:

(5x + 15)° + (6x + 8)° + (4x + 7)° = 180°

15x + 30 = 180 ⇒ x = 10

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