X-25%x-300=900 We have set the unknown X as the total length of the railway.
75%x-300=900, then the equivalent relationship is:
75%x=900+ first week repair 300+ second week repair = total length of railway.
75%x= 1200, so the equation is listed -x-25% x-300 = 900.
X= 1600 I hope I can help you. I'm in grade one.
The total length of this railway is 1600 meters.
A. What is the major category of communication engineering?
Communication engineering aims to accomplish the first thing mentio