Math Problem Statement

Solve for the value of both x and y based on the given angles formed by two parallel lines and a transversal.

Solution

The image shows a geometry problem with three angles labeled (5y4)(5y - 4)^\circ, 3y3y^\circ, and (2x+13)(2x + 13)^\circ. These angles are formed by two parallel lines and a transversal. Let's break down the situation.

  • (5y4)(5y - 4)^\circ and 3y3y^\circ appear to be supplementary angles since they are on the same side of the transversal and inside the parallel lines.

  • 3y3y^\circ and (2x+13)(2x + 13)^\circ also appear to be supplementary for the same reason.

Step 1: Set up equations for the supplementary angles.

  1. (5y4)+3y=180(5y - 4)^\circ + 3y^\circ = 180^\circ
  2. 3y+(2x+13)=1803y^\circ + (2x + 13)^\circ = 180^\circ

Step 2: Solve for yy in the first equation.

(5y4)+3y=180(5y - 4) + 3y = 180 8y4=1808y - 4 = 180 8y=1848y = 184 y=23y = 23

Step 3: Substitute y=23y = 23 into the second equation.

3(23)+(2x+13)=1803(23) + (2x + 13) = 180 69+2x+13=18069 + 2x + 13 = 180 2x+82=1802x + 82 = 180 2x=982x = 98 x=49x = 49

Final Answer:

  • x=49x = 49
  • y=23y = 23

Let me know if you'd like a detailed explanation or if you have any further questions! Here are some related questions for further practice:

  1. What are corresponding angles, and how are they used in problems with parallel lines?
  2. How do you recognize alternate interior angles in geometry problems involving parallel lines?
  3. Can you explain how to solve a system of equations using substitution or elimination?
  4. How would the problem change if the lines were not parallel?
  5. What are the angle relationships when a transversal crosses two parallel lines?

Tip: In problems involving parallel lines and a transversal, look for angle relationships like supplementary, alternate interior, and corresponding angles to set up your equations effectively.

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Math Problem Analysis

Mathematical Concepts

Geometry
Supplementary Angles
Parallel Lines and Transversals

Formulas

Supplementary angles: angle1 + angle2 = 180 degrees

Theorems

Angle relationships with parallel lines and transversals

Suitable Grade Level

Grades 8-10