SOLUTION: Can you help me with this equation? If Ben invests $3400 at 5% interest per year, how much additional money must he invest at 6.5% annual interest to ensure that the interest he

Question 119945: Can you help me with this equation?
If Ben invests $3400 at 5% interest per year, how much additional money must he invest at 6.5% annual interest to ensure that the interest he receives each year is 5.5% of the total amount invested?
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
(3400+x).055=3400*.05+.065x
187+.055x=170+.065x
.055x-.065x=170-187
-.01x=-17
x=-17/-.01
x=$1,700 amount that needs to be invested @ 6.5%
proof
(3400+1700).055=3400*.05+.065*1700
5100*.055=170+110.5
280.5=280.5
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