2025年6月国际A卷 · 第 18 题

2025年6月国际A卷 · 原库模块 2 · Q18 原库参考解析

At different times on a certain day, a manager at a theme park recorded the number of visitors. An exponential model gives the estimated number of visitors, \( V \), at the theme park \( t \) hours after the theme park opened, where \( t\le3 \). Based on the model, \( 80 \) visitors were estimated to be at the theme park when it opened, and every \( 30 \) minutes the estimated number of visitors increased by \( 150\% \) of the estimated number of visitors \( 30 \) minutes earlier. Which of the following equations best represents this model?

2025年6月国际A卷 · 第 18 题

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