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33 votes
33 votes
Solve for x

Enter your answer in the box

X=

Solve for x Enter your answer in the box X=-example-1
User Ken Alton
by
3.1k points

2 Answers

13 votes
13 votes

Answer:

  • x = 3
  • y = 30

Explanation:

We know that the triangle shown in the picture is an equilateral triangle because all the sides are the same. Since the triangle is an equilateral triangle, we can tell that 2y = 25x - 15. Now, let's solve for x.

  • => 2y = 25x - 15 = 60
  • => 25x - 15 = 60
  • => 25x = 60 + 15
  • => 25x = 75
  • => x = 3
  • => 2y = 60
  • => y = 30

Conclusion:

Therefore, the answers are:

  • x = 3
  • y = 30

Hoped this helped.


BrainiacUser1357

User Calimo
by
3.2k points
25 votes
25 votes

Answer:

x = 3

y = 30

Explanation:

The dashes on the sides of the given triangle mean that the side lengths are of equal measure. Therefore, the triangle is an equilateral triangle.

The interior angles of a triangle sum to 180°.

As the interior angles of an equilateral triangle are congruent, each interior angle is 60° (since 3 × 60° = 180°).

Therefore, to find x, set the expression given for angle B to 60° and solve for x:

⇒ (25x - 15)° = 60°

⇒ 25x - 15 = 60

⇒ 25x - 15 + 15 = 60 + 15

⇒ 25x = 75

⇒ 25x ÷ 25 = 75 ÷ 25

x = 3

Therefore, to find y, set the expression given for angle A to 60° and solve for y:

⇒ (2y)° = 60°

⇒ 2y = 60

⇒ 2y ÷ 2 = 60 ÷ 2

y = 30

User Khoroshevj
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2.9k points