2024年10月北美B卷 · 第 7 题

2024年10月北美B卷 · 原库模块 2 · Q7 原库参考解析

19.5x + 27.25y = 8374
Odalys ordered mulch and river rock, which cost a total of 8374, for her home. The given equation represents the relationship between the mumber of cubic yards of mulch, x ,and the number of tons of river rock, y, Odalys ordered. How much more, in dollars, did a ton of river ruck cost Odalys than a cubic yard of mulch?

2024年10月北美B卷 · 第 7 题

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