Percentage
We know that the 100% of the diagram correspond to 24 hours. We can see that Antoine sleeps 40% of the day. We want to know what is the 40% of 24h.
We have the following equivalence:
40% ⇄ ?
100% ⇄ 24h
If we divide both sides of the equivalence we will have the same result
[tex]\begin{gathered} \frac{40}{100}=\frac{?}{24} \\ \frac{2}{5}=\frac{?}{24} \end{gathered}[/tex]
if we multiply both sides if the equation by 24:
[tex]\begin{gathered} \frac{2}{5}=\frac{?}{24} \\ 24\cdot\frac{2}{5}=\text{?} \\ \frac{48}{5}=\text{?} \\ 9.6=\text{?} \end{gathered}[/tex]
Answer: Antoine sleeps 9.6 hours
