Question

Use the formula to help you answer the question below. Do not include unitsin your answer.Rate • TimeDistanceHow many km per hour must you swim if you want to cross a 3-km channel in2 hours?

Answer 1

The formula for the rate is:

`\text{Rate}=\frac{\text{Distance}}{\text{Time}}`

Substitute for the distance equal to 3 and the time equal to 2:

`\begin{gathered} \text{Rate}=(3)/(2) \\ =1.5 \end{gathered}`

Therefore, you should swim at 1.5 km per hour.