Answer: [tex]6\ \text{miles}[/tex]
Step-by-step explanation:
Given
A delivery service charge [tex]\$1.25[/tex] for each delivery
and an additional [tex]\$0.75[/tex] for each mile traveled
Suppose, x miles are covered
The charge is given by
[tex]\Rightarrow 5.75=1.25+0.75x\\\Rightarrow 4.5=0.75x\\\Rightarrow x=6\ \text{miles}[/tex]
Therefore, driver traveled 6 miles for delivery