esperanzar5755
16.10.2020 •
Mathematics
Solve for x
650
35°
7x + 10
Solved
Show answers
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Ответ:
x = 10
Step-by-step explanation:
By interior angle sum property of a triangle:
65° + 35° + (7x + 10)° = 180°
100° + (7x + 10)° = 180°
(7x + 10)° = 180° - 100°
(7x + 10)° = 80°
7x + 10 = 80
7x = 80 - 10
7x = 70
x = 70/7
x = 10
Ответ: