Technology and home economics
Junior High
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例題1、教えてください。

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✨ Best Answer ✨

駆動歯車……歯数20、1000回転/分
被動歯車……歯数80、x回転/分

20×1000=80x
x=1000/4
=250(回転)

かな⁉😕

(前)あお👟

ありがとうございます❤

ていじん

頑張ってね✨

(前)あお👟

はいっ!がんばる予定です!!!笑笑笑笑

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