Question

Tim had 2b books for sale at a price of k dollars each. If y is the number of books he did not sell, which of the following represents the total dollar amount he received in sales from the books?
A. k(2b-y)
B. k(y-2b)
C. ky - 2b
D. 2b - ky
E. 2bk - y

Answer 1

For this case we have:

$2b$: Variable that represents the amount of books Tim had.

k: Variable that represents the price of each book

y: Variable that represents the quantity of books not sold.

Then we have, according to the statement that, the quantity of books sold is given by:

$2b-y$

Thus, the total dollar amount received for the books sold are:

$k (2b-y)$

Answer:

Option A