4)) Isaiah takes 25 hours to treat 75 lawns with organic fertilizer at a housing complex. The lawns in the complex are the same size.
(1) At this rate, how many hours will it take Isaiah to treat 9 lawns that are about the same size? Complete the table.
\begin{tabular}{|c|c|c|}
\hline \multicolumn{1}{|c|}{} & + \\
\hline Lawns & 75 & 9 \\
\hline Time \( (\mathrm{h}) \) & 25 & \\
\hline
\end{tabular}

Answer

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Answer

\( \text{Time} = \frac{\text{Lawns}}{\text{Rate}} = \frac{9}{3} = 3 \mathrm{h} \)

Steps

Step 1 ：\( \text{Rate} = \frac{\text{Lawns}}{\text{Time}} \)

Step 2 ：\( \text{Rate} = \frac{75}{25} = 3 \text{ lawns/hour} \)

Step 3 ：\( \text{Time} = \frac{\text{Lawns}}{\text{Rate}} = \frac{9}{3} = 3 \mathrm{h} \)