The swallow

The swallow will fly 2.8 km per minute. How many km will the swallow fly in one hour?

Correct answer:

x =  168 km

Step-by-step explanation:

$$\begin{gathered} v=2.8\text{ km/min } \\ x=60\cdot v=60\cdot 2.8=168\text{ km} \end{gathered}$$

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