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Uniform rainfall of 73 mm falls on 60 hectares. In a simplified model, 0.9 of the rain becomes runoff. Find runoff volume in m³. Round the final result to 4 decimal places if needed. Answer in m³.
Answer and explanation
39420 m³
Convert mm to m and hectares to m²: (73/1000)(60×10000)(0.9).
Grades 9–12 · Water systems
Uniform rainfall of 72 mm falls on 6 hectares. In a simplified model, 0.8 of the rain becomes runoff. Find runoff volume in m³. Round the final result to 4 decimal places if needed. Answer in m³.
Answer and explanation
3456 m³
Convert mm to m and hectares to m²: (72/1000)(6×10000)(0.8).
Grades 9–12 · Water systems
Uniform rainfall of 21 mm falls on 8 hectares. In a simplified model, 0.5 of the rain becomes runoff. Find runoff volume in m³. Round the final result to 4 decimal places if needed. Answer in m³.
Answer and explanation
840 m³
Convert mm to m and hectares to m²: (21/1000)(8×10000)(0.5).