A bus leaves Santiago heading for Buenos Aires. It takes 21 hours to make the trip which is 1,400 km. After 9 hours the bus has a flat tire. How many Kilometers along are you in the trip. Use the aid of a double number line to explain answer

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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A bus leaves Santiago heading for Buenos Aires. It takes 21 hours to make the trip which is 1,400 km. After 9 hours the bus has a flat tire. How many Kilometers along are you in the trip. Use the aid of a double number line to explain answer. 

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A bus leaves Santiago heading for Buenos Aires. It takes 21 hours to make the trip which is 1,400 km.

Now, using double number line

TimeDistance covered21 hours1400 km1 hour140021 km/hour9 hours9×140021 km=600 km

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