Answer:
There were 275 computers
Step-by-step explanation:
Computers replaced = total computers * percent replaced
What do we know?
The percent replaced is 20 = .2
55 computers were replaced.
Substitute this in
55 = total computers * .2
Divide each side by .2
55/.2 = total computers *.2 /.2
275 = total computers
There were 275 computers
