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7. Find x and y.
3x°
144°
2y-5°
95%

7. Find x and y. 3x° 144° 2y-5° 95%-example-1
User Palani
by
8.1k points

1 Answer

3 votes

The value of x = 13 and y = 4

From the image, we can see that the triangle has angles of 3x°, 144°, and 2y - 5°. We are also given that the triangle has a perimeter of 95%.

To find x and y, we can use the following steps:

Find the sum of the angles in the triangle.

The sum of the angles in a triangle is always 180°. Therefore, we have:

3x° + 144° + 2y - 5° = 180°

Solve for x and y.

Simplifying the above equation, we get:

3x + 2y = 39

We can solve for x and y using any method of solving linear equations. For example, we can use the substitution method.

Let's substitute y with 39 - 3x in the above equation. We get:

3x + 2(39 - 3x) = 39

Solving for x, we get:

3x + 78 - 6x = 39

-3x = -39

x = 13

Substituting x = 13 in the equation y = 39 - 3x, we get:

y = 39 - 3(13)

y = 4

Therefore, x = 13 and y = 4

User Ernesto Petit
by
8.1k points