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ZX-07257319252026年3月国际C卷 · 第 6 题
2026年3月国际C卷 · 原库模块 1 · Q6 原库参考解析
A geologist is analyzing a sample of a coarse-grained igneous rock. The equation \( 3.00x+4.00y=98.0 \) gives the relationship between the estimated volumes of mineral X and mineral Y found in the sample, where x is the estimated volume, in cubic centimeters cm³, of mineral X and y is the estimated volume, in cm³, of mineral Y. If the estimated volume of mineral Y in the sample is 12.8 cm³, what is the estimated volume, in cm³, of mineral X in the sample?
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