A mean average of 60 on seven exams is needed to pass a course. On her first

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A mean average of 60 on seven exams is needed to pass a course. On her first six exams, Sheryl received grades of 52, 72, 80, 65, 57, and 69.

(a) What grade must she receive on her last exam to pass the course? 

(b) An average of 70 is needed to get a C in the course. Is it possible for Sheryl to get a C? If so, what grade must she receive on the seventh exam? 

(c) If her lowest grade of the exams already taken is to be dropped, what grade must she receive on her last exam to pass the course?

(d) If her lowest grade of the exams already taken is to be dropped, what grade must she receive on her last exam to get a C in the course?

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Related Book For  book-img-for-question

A Survey of Mathematics with Applications

ISBN: 978-0134112107

10th edition

Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde

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