Erica Lottsbriner invests $12 000 so that part of her investment earns interest at 4% per annum

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Erica Lottsbriner invests $12 000 so that part of her investment earns interest at 4% per annum and part earns 6% per annum. If the total annual interest on the investment is $560, how much has Erica invested at each rate?

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Contemporary Business Mathematics with Canadian Applications

ISBN: 978-0133052312

10th edition

Authors: S. A. Hummelbrunner, Kelly Halliday, K. Suzanne Coombs

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Question Posted: Feb 26, 2016 03:30 AM

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Erica Lottsbriner invests $12 000 so that part of her investment earns interest at 4% per annum

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Let the amount invested at 4 be x and the amount invested at 6 be y x y 12000 1 ...View the full answer

Contemporary Business Mathematics with Canadian Applications

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