Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 7 - Section 7.1 - Systems of Linear Equations in Two Variables - Exercise Set - Page 823: 104


does not make sense

Work Step by Step

This statement does not make sense because the content of the acid before mixing is $0.5(6)+0.25(4)=3+1=4$ and after mixing it is $0.75(10)=7.5\ne 4$.
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