Answer and Step-by-step explanation:
[tex]Let's~solve~your~problem![/tex]
Formula :
[tex]speed=\frac{distance}{time}[/tex]
Solving for time:
[tex]Time~taken~to~cover~40~miles~on~local~ roads~= \frac{40}{20} = 2~hours[/tex]
[tex]Time~taken~to~cover~180~miles~on~the~highway~=[/tex] [tex]\frac{180}{60}=3~hours[/tex]
[tex]Total~Time~=~5~hours[/tex]
Solving for distance:
[tex]Total~Distance=40 + 180 = 220[/tex]
Average speed:
[tex]\frac{Total~distance}{Total~time} = \frac{225}{5} = 44~miles~per~hour[/tex]
