SOLUTION: The total return from $10,000 and $28,000 was $1,750. If his investment were interchanged the total return will be $1,480. what are the rates of return of each investment?

Question 838169: The total return from $10,000 and $28,000 was $1,750. If his investment were interchanged the total return will be $1,480. what are the rates of return of each investment?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let the original rates of return be
for the $10,000 investment
and for the $28,000 investment
( this will give your answers directly in percent )
-------------------
You are given that:
(1)
(2)
--------------------------------------------------
(1)
(2)
-------------------------------
(1)
(2)
----------------------------
Solve for and
I can't find my calculator

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