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ZX-6D59FE83202026年9月国际C卷练习 · 第 1 题
2026年9月国际C卷练习 · 原库模块 1 · Q1 参考答案
The equation \( x+y=1,440 \) represents the number of minutes of daylight (between sunrise and sunset), x, and the number of minutes of non-daylight, y, on a particular day in Grand Rapids, Michigan. If this day has 740 minutes of daylight, how many minutes of non-daylight does it have?
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