If Sam drives at a rate of 50 mph, he covers 50 miles in 1 hour, 100 miles in 2 hours, and 200 miles in 4 hours. To figure out how far Sam drives, we can follow this formula, or mathematical rule:
Distance = Rate × Time (Distance equals Rate multiplied by Time)
We can also write this formula as :
D = R × T
where D = Distance, R = Rate, and T = Time.