butterflymink butterflymink

05-03-2018
Mathematics

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On Monday 21 dvd's were checked out at the library. This is 3 less than half the amount of books check out that day. How many books were checked out?

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bbartelheimerp53hna bbartelheimerp53hna

05-03-2018

The answer is 48. 21+3 is equal to half of the books so 24 times 2 is 48.

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Itsjustachan Itsjustachan

05-03-2018

DVDs = 1/2b - 3
21 = 1/2b - 3
b = (21 + 3) divide by 1/2
=24 × 2
The answer is 48 books.

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