3. The figure shows a straight portion of the course for a city marathon. The water station Wis located at the midpoint of AB. a. What is the length of the course from point A to point W? 70 meters b. Write a paragraph proof for your answer to part a. A (5x - 110) m W (2x + 100) m 19 B

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Question
Solve.
TR, QS=TR.
3. The figure shows a straight portion of the course for a city marathon. The water station Wis
located at the midpoint of AB.
a. What is the length of the course from point A to point W?
70 meters
b. Write a paragraph proof for your answer to part a.
A
(5x - 110) m
(2x + 100) m
5x-110=2x+108
5x-110=2x
PX=210
F3
2x
x=70
B
5x-110-2x+100
100 -100
5x-200=2x
-5x
-5x
2 MO=-3x
-3-3
70=x
Transcribed Image Text:TR, QS=TR. 3. The figure shows a straight portion of the course for a city marathon. The water station Wis located at the midpoint of AB. a. What is the length of the course from point A to point W? 70 meters b. Write a paragraph proof for your answer to part a. A (5x - 110) m (2x + 100) m 5x-110=2x+108 5x-110=2x PX=210 F3 2x x=70 B 5x-110-2x+100 100 -100 5x-200=2x -5x -5x 2 MO=-3x -3-3 70=x
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