Solution:
Given;
[tex]10.49seconds\text{ for the }100meter\text{ dash}[/tex]
Step 1: Convert 100 meter to mile;
From the table, we have;
[tex]\begin{gathered} 1000meter=1kilometer \\ \\ 100meter=0.1kilometer \\ \\ 0.62mile=1kilometer=1000meter \\ \\ 0.062mile=100meter \end{gathered}[/tex]
Step 2: Convert 10.49 seconds to hour;
[tex]\begin{gathered} 60seconds=1minute \\ \\ 60minutes=1hour \\ \\ (60\times60)seconds=3600seconds=1hour \\ \\ 10.49seconds=0.003hour \end{gathered}[/tex]
Thus, the conversion 10.49 seconds for the 100 meter dash to miles per hour is;
[tex]\begin{gathered} mile\text{ }per\text{ }hour=\frac{0.062}{0.003} \\ \\ mile\text{ }per\text{ }hour=20.7 \end{gathered}[/tex]
ANSWER:
[tex]20.7\frac{mi}{hr}[/tex]
