Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 10 - Systems of Equations and Inequalities - Section 10.6 Systems of Nonlinear Equations - 10.6 Assess Your Understanding - Page 795: 54

Answer

$(32,2)$

Work Step by Step

1. Multiply $ln2$ to the 2nd equation after changing base to natural log, we have $ln\ x=3ln2+2ln\ y$ 2. Use the 1st equation with the above to get $5ln\ y=3ln2+2ln\ y$ or $ln\ y=ln2$, thus $y=2$ 3. Use the 1st equation to get $ln\ x=5ln2$, thus $x=2^5=32$ 4. Check solution $(32,2)$, it fits.
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