ZA and ZB are vertical angles. If mLA= (6x - 11) and mZB=(5x + 4), then find the measure of ZB? Sketch and Label a picture of the situation above. Then set up the equation on the sketchpad. Feel free to solve either on the sketchpad or on paper.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.7: Solving Systems Of Linear And Quadratic Equations
Problem 21PPS
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# How to Setup and Solve the Problem:

## Problem Statement

∠A and ∠B are vertical angles. If m∠A = (6x - 11) and m∠B = (5x + 4), then find the measure of ∠B?

## Instructions:

1. **Sketch and Label** a picture of the situation described.
2. **Setup the Equation** based on the given information.
3. **Solve** the equation using the given sketchpad or paper.

## Detailed Steps:

1. **Visual Representation:**
   - Draw two intersecting lines to form vertical angles ∠A and ∠B.
   - Label angle ∠A and assign its measure as (6x - 11).
   - Label angle ∠B and assign its measure as (5x + 4).

2. **Formulate the Relationship:**
   - Since ∠A and ∠B are vertical angles, their measures are equal.
   - Set up the equation based on this relationship:
     6x - 11 = 5x + 4

3. **Solve for x:**
   - Simplify the equation: 
     6x - 5x = 4 + 11
     x = 15

4. **Find the Measure of ∠B:**
   - Substitute x back into the expression for m∠B:
     m∠B = 5x + 4
     m∠B = 5(15) + 4
     m∠B = 75 + 4
     m∠B = 79 degrees

## Final Answer:
   - The measure of ∠B is 79 degrees.

Feel free to sketch out the angles and solve the equations either on the provided sketchpad or on paper. When ready, submit your answer to complete the task.
Transcribed Image Text:# How to Setup and Solve the Problem: ## Problem Statement ∠A and ∠B are vertical angles. If m∠A = (6x - 11) and m∠B = (5x + 4), then find the measure of ∠B? ## Instructions: 1. **Sketch and Label** a picture of the situation described. 2. **Setup the Equation** based on the given information. 3. **Solve** the equation using the given sketchpad or paper. ## Detailed Steps: 1. **Visual Representation:** - Draw two intersecting lines to form vertical angles ∠A and ∠B. - Label angle ∠A and assign its measure as (6x - 11). - Label angle ∠B and assign its measure as (5x + 4). 2. **Formulate the Relationship:** - Since ∠A and ∠B are vertical angles, their measures are equal. - Set up the equation based on this relationship: 6x - 11 = 5x + 4 3. **Solve for x:** - Simplify the equation: 6x - 5x = 4 + 11 x = 15 4. **Find the Measure of ∠B:** - Substitute x back into the expression for m∠B: m∠B = 5x + 4 m∠B = 5(15) + 4 m∠B = 75 + 4 m∠B = 79 degrees ## Final Answer: - The measure of ∠B is 79 degrees. Feel free to sketch out the angles and solve the equations either on the provided sketchpad or on paper. When ready, submit your answer to complete the task.
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