Kilometers 5641

Eva takes 539 steps on her way to school. How many meters is it if he takes steps that are 4/7 meters long on average? How many kilometers does Eva "walk" during one school year on her way to and from school?

Correct answer:

a =  308 m
b =  120.12 km

Step-by-step explanation:

$$\begin{gathered} n=539 \\ a=\frac{4}{7}\cdot n=\frac{4}{7}\cdot 539=\frac{4\cdot 539}{7}=\frac{2156}{7}=308\text{m} \end{gathered}$$

$$\begin{gathered} r=195\text{d} \\ b=2\cdot r\cdot a/1000=2\cdot 195\cdot 308/1000=\frac{3003}{25}\text{km}=120.12\text{km} \end{gathered}$$

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