SOLUTION: $4,200 is invested , part of it at 5% and part at 6%. The total yield at simple interest for one year is 232. How much was invested at each rate? I figure it is a D=RT problem b

Question 571963: $4,200 is invested , part of it at 5% and part at 6%. The total yield at simple interest for one year is 232. How much was invested at each rate?
I figure it is a D=RT problem but I'm not sure how to set it up.
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
$4,200 is invested , part of it at 5% and part at 6%. The total yield at simple interest for one year is 232. How much was invested at each rate?
**
let x=$ amt invested at 5%
4200-x=$ amt invested at 6%
..
5%x+6%(4200-x)=232
.05x+252-.06x=232
.01x=20
x=2000
4200-x=2200
ans:
amt invested at 5%=$2000
amt invested at 6%=$2200

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