この問題の解き方を教えてください。 - Clearnote

Mathematics

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over 9 yearsago

この問題の解き方を教えてください。

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✨ Best Answer ✨

over 9 yearsago

①20gで3mの針金は2gあたり0.3mです。
54gは2gの27倍なので0.3×27で8.1m
答:8.1m

②7.2mは0.3mの24倍なので2×24で48g
答:48g

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