Respuesta :

Answer:

175

the error in the diagram is that it implies Elena read 1/5 of the book, not Andre

Step-by-step explanation:

x= total number of pages

A = 1/5*x

E = A+20 = 1/5*x+20

1/5*x + 20 = 55

1/5*x = 35

x = 35*5 = 175