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Students sell 80% of the books at a book slae. They sell 48 books in all. How many books are at the book sale? Show your work.
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Students sell 80% of the books at a book slae. They sell 48 books in all. How many books are at the book sale? Show your work.
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Mathematics
4 years
2021-09-05T04:15:25+00:00
2021-09-05T04:15:25+00:00 1 Answers
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Answer:
60 books were at the book sale
Step-by-step explanation:
Let
x = total books at the book sale
Percentage of books sold = 80% of x
= 80/100 * x
= 0.8x
Number of books sold = 48
Therefore,
0.8x = 48
Divide both sides by 0.8
0.8x / 0.8 = 48 / 0.8
x = 60 books
x = total books at the book sale = 60 books
Number of books unsold = Total books at the book sale – number of books sold
= 60 – 48
= 12
Number of books unsold = 12 books