kitykay2399
20.08.2019 •
Mathematics
Which number is prime? a. 97 b. 14 c. 27 d. 49
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Ответ:
6
Step-by-step explanation:
180(n-2) / n = 120
180n - 360 / n = 120
180n - 120n = 360
60n = 360
n = 6