SOLUTION: a person wishes to invest $2400.00 , part at 9% and persent at 6%. if the total interest desired at the end of the year is $189.00, how much should be invested at each rate?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: a person wishes to invest $2400.00 , part at 9% and persent at 6%. if the total interest desired at the end of the year is $189.00, how much should be invested at each rate?      Log On


   

Question 187865This question is from textbook
: a person wishes to invest $2400.00 , part at 9% and persent at 6%. if the total interest desired at the end of the year is $189.00, how much should be invested at each rate? This question is from textbook

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
.09X+.06(2,400-X)=189
.09X+144-.06X=189
.03X=189-144
.03X=45
X=45/.03
X=$1,500 IS THE AMOUNT INVESTED @ 9%
2,400-1,500=$900 IS THE AMOUNT INVESTED @6%.
PROOF:
.09*1,500+.06*900=189
135+54=189
189=189