SOLUTION: I am not really sure what part this falls under, but i had this question on a test, never seen anything like this before: you are given x=5y and y=sqrt5 x(sqrt5)/5y.

Algebra ->  Radicals -> SOLUTION: I am not really sure what part this falls under, but i had this question on a test, never seen anything like this before: you are given x=5y and y=sqrt5 x(sqrt5)/5y.      Log On


   

Question 356062: I am not really sure what part this falls under, but i had this question on a test, never seen anything like this before: you are given x=5y and y=sqrt5
x(sqrt5)/5y.
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
I am not really sure what part this falls under, but i had this question on a test, never seen anything like this before: you are given 
Given:
system%28x=5y%2Cy=sqrt%285%29%29

Find
%28x%2Asqrt%285%29%29%2F%285y%29

Substitute sqrt%285%29 for y

%28x%2Asqrt%285%29%29%2F%285sqrt%285%29%29

Cancel the sqrt%285%29s

%28x%2Across%28sqrt%285%29%29%29%2F%285cross%28sqrt%285%29%29%29

x%2F5

Substitute 5y for x

%285y%29%2F5

Cancel the 5's

%28cross%285%29y%29%2Fcross%285%29

All that's left is y

Edwin