saguil3388
02.04.2021 •
Mathematics
A survey asked a group of adults and youths if they prefer reading books printed on paper or electronic books.
23 youths said they preferred reading books printed on paper.
33 adults said they preferred reading electronic books
57 adults were surveyed.
106 total people were surveyed.
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Ответ:
The answer is 30 laps. Don’t worry about anything else except for the laps and hours. Each hour have 60 minute so you just divide 1800 with 60 and get 30.