SOLUTION: The Shmidt Valley Investment club invested $10000 at 5.1% annual simple interest. How much additional money should they invest at an annual simple interest rate of 3.5%, so that t

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Question 21690: The Shmidt Valley Investment club invested $10000 at 5.1% annual simple interest. How much additional money should they invest at an annual simple interest rate of 3.5%, so that the total annual interest earned from the two accounts is 4.4% of the total investment.
Thanks, I tries this one a million times and no can do!
Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
51x+35(10000-x)=44(10000)
51x+350000-35x=440000
16x=90000
x=5625
hence, they should invest addition of $5625