A car travels 490 miles in 11 hours. What is its average speed?
The average speed is 44.545455 mph.
How to work it out
- 1
Write down what you know: distance d = 490 miles, time t = 11 hours. You are asked for the speed v.
- 2
Use the formula speed = distance ÷ time:
- 3
Answer with the unit: 44.545455 mph.
- 4
The same formula rearranged: distance = speed × time (44.545455 × 11 = 490 miles) and time = distance ÷ speed (490 ÷ 44.545455 = 11 hours).
LaTeX source of the formulas on this page
\[ v = \frac{d}{t} = \frac{490}{11} = 44.545455\ \text{mph} \]
\[ v = \frac{d}{t} = \frac{490}{11} = \frac{490}{11} = 44.545455 \]How far at 44.545455 mph
| Time | Distance |
|---|---|
| 0.5 hours | 22.272727 miles |
| 1 hour | 44.545455 miles |
| 2 hours | 89.090909 miles |
| 3 hours | 133.63636 miles |
| 4 hours | 178.18182 miles |
| 5 hours | 222.72727 miles |
Questions
What is the speed if a car travels 490 miles in 11 hours?
The average speed is 44.545455 mph.
How far does it go in 3 hours at that speed?
133.63636 miles.