Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 5 - Polynomials and Factoring - 5.5 Factoring Sums or Differences of Cubes - 5.5 Exercise Set - Page 339: 50


12.8 gallons

Work Step by Step

We use $x$ to represent the amount he got during his first stop. Doing this, it follows: $$ x+2x=19.2 \\ 3x=19.2 \\ x=6.4$$ Thus, during the second stop, he got: $$=6.4\times 2 = 12.8\ Gallons$$
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