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harkovskaia [24]
3 years ago
15

In ABC, what is the value of x 5.5 6.5 55 65

Mathematics
2 answers:
disa [49]3 years ago
8 0

Answer:

6.5

Step-by-step explanation:

vekshin13 years ago
6 0

<em>Answer:</em>

( B ) x = 6.5

<em>Step-by-step explanation:</em>

We know that all the angles of a triangle equal 180 when added together. So lets make an equation for this question.

(10x-10) + (10x+8) + 8x = 180

I just took all the angles and added them together to make 180. Now solve for x.

10x - 10 + 10x + 8 + 8x = 180 <em>(combined like terms)</em>

28x -2 = 180 <em>(added 2 to both sides)</em>

28x = 182 <em>(divided both sides by 28)</em>

x = 6.5

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