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dmperez1213
13.09.2021 •
Mathematics
30 in to 8ft converter
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Ответ:
9 hours
Step-by-step explanation:
12 people take 15 hours to complete one job. First let's ask how long it would take 18 people working at the same rate to complete the same job? We can use proportions to answer this
Now we know that one job takes 18 people 22.5 hours, so 2/5 of the job would take