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4th option is 32
Help????????

4th option is 32 Help????????-example-1

2 Answers

3 votes

Answer:

x = 30

Explanation:

2x + 10 + 2x + 25 + x - 5 = 180

2x + 2x + x = 180 - 10 - 25 + 5

5x = 150

x = 150/5

x = 30

User Robertjd
by
8.5k points
3 votes

Answer: x = 30

Explanation:

The sum of the angles in a triangle is 180 degrees. This means that

Angle R + Angle S + Angle T = 180 degrees

Looking at the triangle,

Angle R = (2x + 10) degrees

Angle S = (2x + 25) degrees

Angle T = (x - 5) degrees

Therefore,

2x + 10 + 2x + 25 + x - 5 = 180

2x + 2x + x + 10 + 25 - 5 = 180

5x + 30 = 180

Subtracting 30 from the left hand side and the right hand side of the equation, it becomes

5x + 30 - 30 = 180 - 30

5x = 150

Dividing the left hand side and the right hand side of the equation by 5, it becomes

5x/5 = 150/5

x = 30

User Shubham Chauhan
by
8.1k points

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