Ayuda con mi tarea de matemáticas , dice asi : en una biblioteca hay 5 estantes , 2/5 de uno de ellos está ocupado por libros de historia , 7/2 por libros de matemática y 11/10 por libros de inglés. hay espacio en la biblioteca para colocar mas libros?

There are 5 shelves in the bookcase.

2/5 of one shelve is occupied.

That would be:

2/5*1/5=2/25 of all shelves

7/2 is more than 1, so it refers to the bookcase instead of one shelve. The same with 11/10.

So the total is:

2/5+7/2+11/10 = 5

So all shelves are completely full.

So there is no room for any other book.

x+y=90

x=30-y=x

step-by-step explanation:

if you understand you will get the answer