2024年8月北美B卷 · 第 10 题

2024年8月北美B卷 · 原库模块 1 · Q10 原库参考解析

A biologist is designing a study to observe the behavior of male and female amethyst-throated hummingbirds. According to the study's design, at least 91 hummingbirds will be observed, and the positive difference between the number of males, x, and the number females, y, will not exceed 8. Which of the following systems of inequalities represents this situation?

2024年8月北美B卷 · 第 10 题

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