Mathematics: 8. in δrst, m∠r = (2x + 10)°, m∠s = (2x + 25)°, and m∠t = (x – 5)°. what is the value of x? (points : 3) 26 28 30 32

8. in δrst, m∠r = (2x + 10)°, m∠s = (2x + 25)°, and

Ответ:

bdog2213

01.01.2022

The measures of the angles in a triangle add up to 180°.
$(2x+10)^\circ+(2x+25)^\circ+(x-5)^\circ=180^\circ \\
2x+10+2x+25+x-5=180 \\
5x+30=180 \\
5x=180-30 \\
5x=150 \\
x=\frac{150}{5} \\
\boxed{x=30}$

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Ответ:

solivagantjn3010

01.01.2022

Mathematics

The sum of the measures of the interior angles of a triangle is $180^{\circ}$ .

So,
$2x+10+2x+25+x-5=180\\
5x=150\\
x=30$

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Ответ:

TroyClegg

24.11.2021

Mathematics

Step-by-step explanation:

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8. in δrst, m∠r = (2x + 10)°, m∠s = (2x + 25)°, and m∠t = (x – 5)°.
what is the value of x?
(points : 3)
26
28
30
32

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