Question

& 4th Which of the following lengths is equivalent to 12.5 km? 20.1 mi 7.77 mi

Answer 1

1 mile is aproximately equivalent to 1.61 kilometers. To find the equivalent length of 12.5 km, we can use the next proportion:

`\frac{1\text{ mile}}{x\text{ miles}}=\frac{1.61\text{ km}}{12.5\text{ km}}`

Solving for x:

`\begin{gathered} 1\cdot12.5=1.61\cdot x \\ (12.5)/(1.61)=x \\ 7.77\text{ miles = x} \end{gathered}`