Question:** A marine autonomous underwater geological mapping engineer is analyzing the mineral composition data from two distinct seabed regions. If $a$ represents the concentration of mineral A in grams per liter and $b$ represents the concentration of mineral B, and the engineer finds that $3a + 4b = 12$ and $a - 2b = -1$, find the concentrations $a$ and $b$.

Sun, 03 May 2026 00:51:14 +0000

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