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4 years ago

A triangle has the 3 angles marked as A = 2x - 6, B = x + 10, C= 2x +1. What is x?

1 answer:

3 0

Olá!

(2x - 6) + (x+ 10) + (2x + 1) = 180

2x - 6 + x + 10 + 2x + 1 = 180

2x + x + 2x = 180 + 6 - 10 - 1

5x = 175

x = 35

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<h3>How to find the relative frequency?</h3>

Relative frequency is the ratio of the considered sub-group count to the total count. (so its frequency of the considered sub-group relative to the total frequency).

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Among the students who did not make the honor roll.

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brainly.com/question/8358304

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4 years ago

5-7y/2+4y equals -8/7

Ksenya-84 [330]

Answer:

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Step-by-step explanation:

$= > \frac{5 - 7y}{2 + 4y} = - \frac{8}{7} \\ \\ = > 7(5 - 7y) = - 8(2 + 4y) \\ \\ = > (7 \times 5) - (7 \times 7y) = ( - 8 \times 2) + ( - 8 \times 4y) \\ \\ = > 35 - 49y = - 16 - 32y \\ \\ = > 35 - 49y + 32y = - 16 \\ \\ = > 35 - 17y = - 16 \\ \\ = - 17y = - 16 - 35 \\ \\ = > \cancel{- }17y = \cancel{- } 51 \\ \\ = > 17y = 51 \\ \\ = > y = \frac{51}{17} \\ \\ = > y = 3$

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3 years ago