# Chapter 8 Rational Functions - 8.2 Graph Simple Rational Functions - 8.2 Exercises - Problem Solving - Page 562: 39a

$14.45$s

#### Work Step by Step

Plugging in $T=25$ into the function we get: $t=\frac{1000}{0.6(25)+331}\approx2.89$, this is the time it needs to travel $1$ km. Thus to travel $5$ kms, it needs $5\cdot2.89=14.45$s

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