What do we know so far:
- [tex]2\frac{2}{3}laps[/tex] in [tex]\frac{4}{15}hour[/tex] ⇒ [tex]\frac{8}{3}laps[/tex] in [tex]\frac{4}{15}hour[/tex]
*we converted the number of laps into improper fractions
[tex]2\frac{2}{3} = \frac{8}{3}[/tex]
We want to know the number of laps in an hour
⇒ so we must find the rate which ⇒ lap/hour
[tex]lap/hour =\frac{8/3laps}{4/15hours} =\frac{8}{3}*\frac{15}{4} =\frac{8}{4} *\frac{15}{3} =2*5=10laps/hour[/tex]
So William can run ⇒ 10 laps in one hour
Hope that helps!
