1,以圆的半径为边长的正方形的面积是30平方分米,求圆的面积2,某单位买甲,乙两种钢笔150支,已知甲钢笔每支3元,乙钢笔每支2元,且甲,乙两种钢笔所用的钱数一样多,甲乙两种钢笔各是多少支?3,
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![1,以圆的半径为边长的正方形的面积是30平方分米,求圆的面积2,某单位买甲,乙两种钢笔150支,已知甲钢笔每支3元,乙钢笔每支2元,且甲,乙两种钢笔所用的钱数一样多,甲乙两种钢笔各是多少支?3,](/uploads/image/z/11367784-64-4.jpg?t=1%2C%E4%BB%A5%E5%9C%86%E7%9A%84%E5%8D%8A%E5%BE%84%E4%B8%BA%E8%BE%B9%E9%95%BF%E7%9A%84%E6%AD%A3%E6%96%B9%E5%BD%A2%E7%9A%84%E9%9D%A2%E7%A7%AF%E6%98%AF30%E5%B9%B3%E6%96%B9%E5%88%86%E7%B1%B3%2C%E6%B1%82%E5%9C%86%E7%9A%84%E9%9D%A2%E7%A7%AF2%2C%E6%9F%90%E5%8D%95%E4%BD%8D%E4%B9%B0%E7%94%B2%2C%E4%B9%99%E4%B8%A4%E7%A7%8D%E9%92%A2%E7%AC%94150%E6%94%AF%2C%E5%B7%B2%E7%9F%A5%E7%94%B2%E9%92%A2%E7%AC%94%E6%AF%8F%E6%94%AF3%E5%85%83%2C%E4%B9%99%E9%92%A2%E7%AC%94%E6%AF%8F%E6%94%AF2%E5%85%83%2C%E4%B8%94%E7%94%B2%2C%E4%B9%99%E4%B8%A4%E7%A7%8D%E9%92%A2%E7%AC%94%E6%89%80%E7%94%A8%E7%9A%84%E9%92%B1%E6%95%B0%E4%B8%80%E6%A0%B7%E5%A4%9A%2C%E7%94%B2%E4%B9%99%E4%B8%A4%E7%A7%8D%E9%92%A2%E7%AC%94%E5%90%84%E6%98%AF%E5%A4%9A%E5%B0%91%E6%94%AF%3F3%2C)
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