Current location - Training Enrollment Network - Mathematics courses - A bookshelf is 88㎝ wide. There are 90 math books and Chinese books on a certain floor. The math book is 0.8cm, and the Chinese book is 1.2cm. Find out how many books there are and draw a table.
A bookshelf is 88㎝ wide. There are 90 math books and Chinese books on a certain floor. The math book is 0.8cm, and the Chinese book is 1.2cm. Find out how many books there are and draw a table.
Solution: If there are X math books, there are 90-x Chinese books.

0.8*x+ 1.2*(90-x)=88

-0.4x=-20

x=50

90-50=40 (Ben)

Answer: There are 50 math books and 40 Chinese books.

Xiaoya will be happy to answer your questions and wish you progress in your study! o(∩_∩)o! ! !