In a library, 13 out of 65 books on a bookshelf are non-fiction. if the library has 4,000 books total, how many of those are non-fiction? (use rule of four)

Ratio of non-fiction to total books = 13/65 = 1/5

Non-Fiction books = 1/5 * total books = 1/5 * 4000 = 800

So, 800 is your answer

1696 hundred thousand

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk