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ZX-E49B2AF3D6Systems of two linear equations in two variables · 第 10 题
Systems of two linear equations in two variables · 原库模块 1 · Q10 原库参考解析
A movie theater sells two types of tickets, adult tickets for $12 and child tickets for $8. If the theater sold 30 tickets for a total of $300, how much, in dollars, was spent on adult tickets? (Disregard the $ sign when gridding your answer.)
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