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Openai/695d09e5-7848-8005-85a0-7c1e2c1cf8c2
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=== Assistant: 我們一段一段算,把「單位梗」翻回正常數學。 === 我們一段一段算,把「單位梗」翻回正常數學。 ==== : ==== ===== 433萬×60=4.33×106×60=2.598×108 元433萬 \times 60 ===== = 4.33\times10^6 \times 60 = 2.598\times10^8 \text{ 元}433萬×60=4.33×106×60=2.598×108 元 因為題目說「約需 x 億」: 2.598×108 元≈2.6 億2.598\times10^8 \text{ 元} \approx 2.6 \text{ 億}2.598×108 元≈2.6 億 👉 x=2.6=2.6×100x = 2.6 = 2.6\times10^0x=2.6=2.6×100 ==== 已知: ==== * 馬桶細菌密度:每平方公分 10 隻 * 手機: - 面積 = 馬桶的 1/10 - 細菌密度 = 馬桶的 1000 倍 ===== 手機細菌量=110×1000=100\text{手機細菌量} ===== = \frac{1}{10} \times 1000 = 100手機細菌量=101×1000=100 👉 一支手機 ≈ 100 個馬桶的細菌量 y=100=102y = 100 = 10^2y=100=102 ==== (x,y)=(2.6×100, 102)(x,y) = (2.6\times10^0,\;10^2)(x,y)=(2.6×100,102) ==== ===== (3) ===== 這題本質是在考: * 單位換算(萬、億) * 面積 × 密度的比例比較 外表是新聞迷因題 😄
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