SOLUTION: a total of R9000 was invested in two funds. one fund pays 5% interest and the other funs pays 6% interest annually. the combined annual interest is R510. work out how much of

Question 749438:
a total of R9000 was invested in two funds. one fund pays 5% interest and the other funs pays 6% interest annually. the combined annual interest is R510. work out how much of the money was invested in each fund
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
.06x+.05(9000-x)=510
.06x+450-.05x=510
.01x=510-450
.01x=60
x=60/.01
x=$6,000 invested @ 6%.
9,000-6,000=$3,000 invested @ 5%.
Proof:
.06*6,000+.05*3,000=510
360+150=510
510=510
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