Elaine can complete a landscaping project in 2 hours with the help of either her husband Brian

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Elaine can complete a landscaping project in 2 hours with the help of either her husband Brian or both her two daughters. If Brian and one of his daughters work together, it would take them 4 hours to complete the project. Assuming the rate of work is constant for each person, and the two daughters work at the same rate, how long would it take Elaine, Brian, and one of their daughters to complete the project?

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College Algebra

ISBN: 9780135226865

11th Edition

Authors: Michael Sullivan, Michael Sullivan III

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