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- Change in distance = 550 - 148 = <<550-148=402>>402 km
- Time interval = 5 - 2 = 3 days
- Average speed = 402 / 3 = <<402/3=134>>134 km/day
- An anthropologist analyzing ritual participation in a tribe finds that 60 members participate in ceremonies, 45 in storytelling, and 25 in both. If the total adult population is 100, how many adults participate in neither activity?
- P(ceremonies only) = 60 - 25 = <<60-25=35>>35
- P(storytelling only) = 45 - 25 = <<45-25=20>>20
