Question

A car traveled at 65 miles per hour for a total of 390 miles. How many hours did the car travel?

Answer 1

$390 miles / 65mph = 6 hours.$

Answer 2

Formula to calculate it is simple:
$v=\frac{s}{t}$
where v is the speed, s-road, t-time
Speed ​​is equal to the ratio of road to czau estimated driving:
$65=\frac{390}{t}|*t$
$65t=390|:65$
$t=\frac{390}{65}$
$t=6$
The car was for 6 hours.