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Fritz normally commutes at an average speed of 42 miles per hour, but this morning's heavy traffic held him to only 30 miles per hour. He must determine whether he can drive home fast enough this evening in order to maintain his usual round-trip average speed. In order to maintain his usual average round-trip speed, Fritz will have to drive home at miles per hour.

Fritz normally commutes at an average speed of 42 miles per hour, but this morning's heavy traffic held him to only 30 miles per hour. He must determine whether he can drive home fast enough this evening in order to maintain his usual round-trip average speed. In order to maintain his usual average round-trip speed, Fritz will have to drive home at miles per hour.

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter1: Equations, Inequalities, And Mathematical Modeling
Section: Chapter Questions
Problem 22T: On the first part of a 350-kilometer trip, a salesperson travels 2 hours and 15 minutes at an...
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Fritz normally commutes at an average speed of 42 miles per hour, but this morning's heavy traffic held him to only 30 miles per hour. He must determine whether he can drive home fast enough this evening in order to maintain his usual round-trip average speed. In order to maintain his usual average round-trip speed, Fritz will have to drive home at miles per hour.
Transcribed Image Text:Fritz normally commutes at an average speed of 42 miles per hour, but this morning's heavy traffic held him to only 30 miles per hour. He must determine whether he can drive home fast enough this evening in order to maintain his usual round-trip average speed. In order to maintain his usual average round-trip speed, Fritz will have to drive home at miles per hour.
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