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A race car driver completes 200 laps at an average speed of 180 miles per hour, but after a small accident on the track, she completes the next 30 laps at an average speed 30 miles per hour, then 40 laps at 90 miles per hour, and finally she finishes the races final 30 laps at 150 miles per hour. What is her average speed for the entire race?

A race car driver completes 200 laps at an average speed of 180 miles per hour, but after a small accident on the track, she completes the next 30 laps at an average speed 30 miles per hour, then 40 laps at 90 miles per hour, and finally she finishes the races final 30 laps at 150 miles per hour. What is her average speed for the entire race?

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
ChapterP: Prerequisites
SectionP.5: Rational Expressions
Problem 72E
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age speed of the current? 8. A race car driver completes 200 laps at an average speed of 180 miles per hour, but after a small accident on the track, she completes the next 30 laps at an average speed 30 miles per hour, then 40 laps at 90 miles per hour, and finally she finishes the races final 30 laps at 150 miles per hour. What is her average speed for the entire race?
Transcribed Image Text:age speed of the current? 8. A race car driver completes 200 laps at an average speed of 180 miles per hour, but after a small accident on the track, she completes the next 30 laps at an average speed 30 miles per hour, then 40 laps at 90 miles per hour, and finally she finishes the races final 30 laps at 150 miles per hour. What is her average speed for the entire race?
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