A car travels 440 miles in 7 hours. What is its average speed?
The average speed is 62.857143 mph.
How to work it out
- 1
Write down what you know: distance d = 440 miles, time t = 7 hours. You are asked for the speed v.
- 2
Use the formula speed = distance ÷ time:
- 3
Answer with the unit: 62.857143 mph.
- 4
The same formula rearranged: distance = speed × time (62.857143 × 7 = 440 miles) and time = distance ÷ speed (440 ÷ 62.857143 = 7 hours).
LaTeX source of the formulas on this page
\[ v = \frac{d}{t} = \frac{440}{7} = 62.857143\ \text{mph} \]
\[ v = \frac{d}{t} = \frac{440}{7} = \frac{440}{7} = 62.857143 \]How far at 62.857143 mph
| Time | Distance |
|---|---|
| 0.5 hours | 31.428571 miles |
| 1 hour | 62.857143 miles |
| 2 hours | 125.71429 miles |
| 3 hours | 188.57143 miles |
| 4 hours | 251.42857 miles |
| 5 hours | 314.28571 miles |
Questions
What is the speed if a car travels 440 miles in 7 hours?
The average speed is 62.857143 mph.
How far does it go in 3 hours at that speed?
188.57143 miles.