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- A soil scientist applies a cover crop to reduce erosion. The field is 2.5 hectares, and the recommended seed rate is 12 kg per hectare. The seed mix includes 60% clover seed and 40% rye grass. How many grams of clover seed are applied to the entire field?
- Total seed needed: \( 2.5 \, \text{ha} \times 12 \, \text{kg/ha} = 30 \, \text{kg} \)
- Clover portion: \( 30 \, \text{kg} \times 0.60 = 18 \, \text{kg} \)
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- An anthropologist is comparing household storytelling frequencies across three indigenous groups. Group A tells 5 stories per week, Group B tells 8 per week, and Group C tells 3 per week. If she observes 15 households from A (average 4 members each), 10 from B (average 5 members each), and 20 from C (average 3 members each), what is the average number of stories per person per week across all observed individuals?
- Total stories from A: \( 15 \times 4 \times 5 = 300 \)