Given:
We have changed our speed limit signs to metric.
To find:
(a) 30 mi/h in km/h
(b) 75 mi/h in km/h
Explanation:
We know,
[tex]1\text{ mi=1.61 km}[/tex](a)
So,
[tex]\begin{gathered} 30\text{ mi/h} \\ =30\times1.61\text{ km/h} \\ =48.3\text{ km/h} \end{gathered}[/tex]Hence,
[tex]30\text{ m/h=48.3 km/h}[/tex]b)
Now,
[tex]\begin{gathered} 75\text{ mi/h} \\ =75\times1.61\text{ km/h} \\ =120.75\text{ km/h} \end{gathered}[/tex]Hence,
[tex]75\text{ mi/h=120.75 km/h}[/tex]