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Paraphin [41]
1 year ago
13

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
Mathematics
1 answer:
horrorfan [7]1 year ago
8 0

Let:

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

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

Using cross multiplication:

\begin{gathered} \frac{100}{30}=\frac{24}{x} \\ solve_{\text{ }}for_{\text{ }}x\colon \\ x=\frac{30\cdot24}{100} \\ x=\frac{720}{100}=7.2h \end{gathered}

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