Question

What must your speed be in order to travel 400 km in 3 hrs?

Answer 1

`\boxed {\tt s=133 (1)/(3) \ or \ 133.333333 \ km/hr}`

Step-by-step explanation:

We want to find speed, so we can use the following formula.

`s=(d)/(t)`

where
`d` is the distance traveled and
`t` is the time.

We traveled 400 kilometers in 3 hours. Therefore,

`d= 400 \ km \\t= 3 \ hrs`

Substitute the values into the formula.

`s=(400 \ km )/(3 \ hrs)`

Divide

`s= 133.33333 \ km/hr`

`s= 133 (1)/(3) \ km/hr`

The speed is 133 1/3 or 133.33333 kilometers per hour.