The bus fare in a city is $1.50 People who use the bus have the option of purchasing a monthly coupon book for $21.00. With the coupon​ book, the fare is reduced to $0.50. Determine the number of times in a month the bus must be used so that the total monthly cost without the coupon book is the same as the total monthly cost with the coupon book.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
ChapterP: Prerequisites
SectionP.9: Modeling With Equations
Problem 29E
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The bus fare in a city is $1.50 People who use the bus have the option of purchasing a monthly coupon book for $21.00. With the coupon​ book, the fare is reduced to $0.50. Determine the number of times in a month the bus must be used so that the total monthly cost without the coupon book is the same as the total monthly cost with the coupon book.

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