irlanda20
14.07.2020 •
Mathematics
Find the measure of the remote exterior angle. mZx = (6n – 20)°
mzy = (5n + 11)
mZz = (171 - nº
Х
Z
A. 70
B. 86
C. 156
D. 15
Solved
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Ответ:
z = 156
Step-by-step explanation:
x+y = z
6n - 20 + 5n+11 = 171 -n
Combine like terms
11n -9 = 171 -n
Add n to each side
12n -9 = 171
Add 9 to each side
12n = 180
Divide by 12
n = 15
Z = 171 - n
z = 171- 15
z =156
Ответ:
150