## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 2 Linear Equations and Functions - 2.3 Graph Equations of Lines - 2.3 Exercises - Problem Solving - Page 95: 64c

#### Answer

$30$ minutes

#### Work Step by Step

This means $x=y$. Plugging this into the equation: $30x+90x=1800\\120x=1800\\x=15$ Then the total trip time is: $x+y=x+x=2x=2(15)=30$ minutes

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