britttttt03
27.10.2020 •
Mathematics
A triangle has angle measures x + 15 , 3x − 35 , and 4x. Find the value of x
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Ответ:
Using the knowledge of the total sum of the internal angles of a triangle, the value of x would be 25
Recall :
A + B + C = 180° (Sum of the internal angles of a triangle)Hence,
(x + 15) + (3x - 35) + 4x = 180
x + 15 + 3x - 35 + 4x = 180
8x - 20 = 180
8x = 180 + 20
8x = 200
x = 200 / 8
x = 25°
Therefore, the value of x is 25
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Ответ:
(x + 15) + (3x - 35) + (4x) = 180
3x + x + 4x = 200
8x = 200
Therefore, x = 25
Ответ:
25
Step-by-step explanation:
60 = 15
100 = x
now cross multiply so 100*15 is 1500 now divide it by 60 which is 25