A library has 12,500 fiction books and 19,000 nonfiction books. Currently, 2/5 of the fiction books are checked out. Currently, 2/5 of the nonfiction books are checked out. Of the books checked out, 1/10 are due back this week. How many books are due this week? *

step-by-step explanation:

consider the parallelogram shown in the attached image.

in the parallelogram hijk, the length of hk is given as,

from the properties of parallelogram we know that the opposite sides of a parallelogram are parallel to each other and are equal in measure.

therefore, the length of the side ij must be equal to the length of the side hk and that is .

hence, the expression for the length of ij confirms that hijk is a parallelogram.

answer: 1.5

step-by-step explana