Question 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.

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 Log in to Reply

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