Mathematics
SybilVanartsdalen
4

Greene ran the 100-meter dash in 9.79 seconds. What was his speed in kilometers per hour (round to the nearest kilometer)? Please explain the work behind the solution

+0
(1) Answers
barbiestar8756

[latex]Formula\ for\ speed:\\\\ speed=\frac{distance}{time}\\ 1km=1000m\\distance=100m=0,1km\\ 1s=\frac{1}{3600}h\\time=9,79s=\frac{9,79}{3600}=0,003\\\\ speed=\frac{0,1km}{0,003h}=\boxed{33,33..\frac{km}{h}}[/latex]

Add answer