Question

The bar diagram represents 24 hours in one day and shows a mark at 30%If you sleep 30% of the day, how many hours do you sleep? Enter your answer in the box24Hours sleptPercent0%30%100%hoursPlease help

Answer 1

Let:

100%---------------->24h

30%------------------>xh

Using cross multiplication:

`\begin{gathered} (100)/(30)=(24)/(x) \\ solve_{\text{ }}for_{\text{ }}x\colon \\ x=(30\cdot24)/(100) \\ x=(720)/(100)=7.2h \end{gathered}`