1) 6 machines produce 672 articles in 4 hours.
a) Find the production rate of each machine per hour in articles/machine.
b) If all machines produce articles at the same rate, how many articles can 5 machines produce in 9 hours?
收錄日期: 2021-04-13 14:18:47
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https://hk.answers.yahoo.com/question/index?qid=20071103000051KK01693