Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 2 - Section 2.6 - Percent and Mixture Problem Solving - Exercise Set: 26

Answer

$6.7$ pounds

Work Step by Step

Let $x$ be the number of pounds of cashews needed to add. $3 \times 20 + 5 \times x = 3.50 \times (20+x)$ $60+5x=70+3.5x$ $1.5x=10$ $x\approx6.7$ pounds
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