SOLUTION: If the primary to secondary voltage ratio is 4:1 for a transformer, what is the secondary voltage if the primary voltage is 460 volts?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: If the primary to secondary voltage ratio is 4:1 for a transformer, what is the secondary voltage if the primary voltage is 460 volts?      Log On


   

Question 579426: If the primary to secondary voltage ratio is 4:1 for a transformer, what is the secondary voltage if the primary voltage is 460 volts?
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
I'll call the answer x Volts.
primary%2Fsecondary=4%2F1=460%2Fx
So we start with
4%2F1=460%2Fx , and solve for x
We could say the we multiply both sides times x,
or we could say that the teacher (or the book) says that in proportions the cross products are equal (or something like that)
Anyway, we conclude that the following is an equivalent equation
4x=460
Then we could say that we divide both sides by 4 to get
4x%2F4=460%2F4 --> x=115
So the secondary voltage is highlight%28115%29 Volts.