There are 318 fiction books in the class library. the number of nonfiction books is 47 less than the number of fiction books about how many nonfiction books are there in the class library? explain

271 books

Step-by-step explanation:  

Given: There are 318 fiction books in the class library.the number of nonfiction books is 47 less than the number of fiction books.

To find: About how many nonfiction books are there in the class library

Solution: It is given that 318 fiction books in the class library.

Also it is given that the number of nonfiction books is 47 less than the number of fiction books.

Let us assume that there are x nonfiction books,

So, we have

Hence, the number of nonfiction books is 271.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column