#### 5520
Related Articles
- An ichthyologist observes that a reef's parrotfish population grows by 15% annually in the absence of stress. However, due to coral bleaching, the population declined 40% in 2022, then grew by 15% in 2023. If the population was 8,000 in 2021, what was it in 2023?
- After 40% decline in 2022: 8000 × (1 – 0.40) = 8000 × 0.60 = <<8000*0.60=4800>>4800.
- Growth in 2023: 4800 × 1.15 = <<4800*1.15=5520>>5520.
- A linguist studies code-switching in bilingual communities. She finds that 70% of conversations involve switching between English and Spanish. Of those, 40% also include fragments of Native American languages. If she analyzes 350 conversations, how many include both English-Spanish switching and Native American language elements?
- English-Spanish switch: 0.70 × 350 = <<0.70*350=245>>245 conversations.
- Of these, with Native American language: 0.40 × 245 = <<0.40*245=98>>98.
