How to use it
- Write the known two quantities with units.
- Choose d=rt, r=d/t, or t=d/r.
- Check units.
See it in action
150 miles at 50 mph takes 150/50=3 hours.
How to verify it
50 mph×3 h=150 miles.
Use the Distance–Rate–Time Triangle
Distance, rate, and time are linked by d=rt.