Sam average 65 miles per hour on a road trip how many hours will it take him to drive 260 miles

So we have 65/1 (65mph), and 260/x, x being the amount of hours we need.
Cross multiply 260 by 1, and 65 by x. Once we do that, divide 260 by 65x.
260/65x.
Divide both sides by 65.
4=x.
It will take him 4 hours. Hope this helps!