which student is correct and why? Next O20Erik and David both got the same answer when they solved the problem below for x. However, the teacher graded their solutions differently. Whichstudent, if either, was correct? Why?Erik's SolutionDavid's Solutionx+72 + 144 = 180180 - 144 = 36; 180 – 72 = 108144x+ 216 = 180x+36 + 108 = 180216 - 180 = 36x+ 144 = 18072x = 36°- 144 = -144X = 36°YesThe114

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Description: which student is correct and why? Next O20Erik and David both got the same answer when they solved the problem below for x. However, the teacher graded their solutions differently. Whichstudent, if either, was correct? Why?Erik's SolutionDavid's Solu

We know that the straight line makes an angle of 180 degree. So, y+72∘=180∘⇒y=108∘

Math

Algebra

Erik and David both got the same answer when they solved the problem below for x. However, the teacher graded their solutions differently. W student, if either, was correct? Why? Erik's Solution David's Solution x+72 + 144 = 180 180 - 144 = 36; 180 - 72 = 108 144 x+216 = 180 x+36 + 108 = 180 216 – 180 = 36 x+ 144 = 180 x= 36° - 144 = -144 I= 36

Erik and David both got the same answer when they solved the problem below for x. However, the teacher graded their solutions differently. W student, if either, was correct? Why? Erik's Solution David's Solution x+72 + 144 = 180 180 - 144 = 36; 180 - 72 = 108 144 x+216 = 180 x+36 + 108 = 180 216 – 180 = 36 x+ 144 = 180 x= 36° - 144 = -144 I= 36

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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which student is correct and why?

Next O
20
Erik and David both got the same answer when they solved the problem below for x. However, the teacher graded their solutions differently. Which
student, if either, was correct? Why?
Erik's Solution
David's Solution
x+72 + 144 = 180
180 - 144 = 36; 180 – 72 = 108
144
x+ 216 = 180
x+36 + 108 = 180
216 - 180 = 36
x+ 144 = 180
72
x = 36°
- 144 = -144
X = 36°
Yes
The
114

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