The distance traveled by Davis family = 35 miles
Time taken to cover the distance = [tex]\frac{1}{2}[/tex] hour
Speed = Distance [tex]\div[/tex] Time
Speed = [tex]35 \div \frac{1}{2}[/tex]
Speed = [tex]35 \times 2[/tex]
So, speed = 70 miles/hour.
At 2:00 pm, the family destination was 245 miles away.
So, the number of hours, when the family was 245 miles away = [tex]245 \div 70[/tex]
= 3.5 hours
So, after 3.5 hours, that is at 5:30 pm, the Davis family will be 245 miles away.
