Question

A car travels 285 miles in 4 hours (with a constant speed). How far can it travel in 3 hours (with the same speed)?

Answer 1

Data:

Distance: 285 miles

Time: 4 hours

As the speed was constant, you can calculated it, as follow:

`s=(d)/(t)`
`s=\frac{285\text{miles}}{4h}=71.25(miles)/(h)`

Then, you can find the distance in 3 hours with the next formula:

`d=s\cdot t`

You know the value of the spped (71.25miles/h) and the time is 3h:

`d=71.25\frac{\text{miles}}{h}\cdot3h=213.75miles`Then, the car travels 213.75 miles in 3 hours.