College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.1 - Page 532: 102


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Work Step by Step

Give an example of a word problem that describes a system of linear equation. For example: At a store oranges weigh 4 ounces and cost 10 cents, while apples weigh 3 ounces and cost 15 cents. Jack goes to this store and spends exactly 1 dollar on apples and bananas. The fruit he bought weighs 28 ounces total. How many oranges and bananas did Jack buy? This word problem can be solved by using the following system of linear equations: 10x + 15y = 100 4x + 3y = 28 The first equation represents the cost of oranges and bananas and the second equation represents the weight of the oranges and bananas.
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