What range of grades on the fifth test would result in Devon receiving a grade of B

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What range of grades on the fifth test would result in Devon receiving a grade of B if his grades on the first four tests were 78%, 64%, 88%, and 76%?

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A Survey of Mathematics with Applications

ISBN: 978-0134112107

10th edition

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

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Question Posted: Jan 12, 2019 12:41 PM

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What range of grades on the fifth test would result in Devon receiving a grade of B

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Let x Devons grade on the fifth test 80 78 64 88 76 x...View the full answer

A Survey of Mathematics with Applications

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