A car travels 450 miles in 1 hour. What is its average speed?
The average speed is 450 mph.
How to work it out
- 1
Write down what you know: distance d = 450 miles, time t = 1 hour. You are asked for the speed v.
- 2
Use the formula speed = distance ÷ time:
- 3
Answer with the unit: 450 mph.
- 4
The same formula rearranged: distance = speed × time (450 × 1 = 450 miles) and time = distance ÷ speed (450 ÷ 450 = 1 hour).
LaTeX source of the formulas on this page
\[ v = \frac{d}{t} = \frac{450}{1} = 450\ \text{mph} \]
\[ v = \frac{d}{t} = \frac{450}{1} = 450 \]How far at 450 mph
| Time | Distance |
|---|---|
| 0.5 hours | 225 miles |
| 1 hour | 450 miles |
| 2 hours | 900 miles |
| 3 hours | 1350 miles |
| 4 hours | 1800 miles |
| 5 hours | 2250 miles |
Questions
What is the speed if a car travels 450 miles in 1 hour?
The average speed is 450 mph.
How far does it go in 3 hours at that speed?
1350 miles.