SOLUTION: Ako si lance Pls help me A certain amount is invested at 5% per year,and Php 7000 less than this amount is invested at 6% per year.The investment yield Php 8820 yearly.How much wa

Question 935047: Ako si lance Pls help me
A certain amount is invested at 5% per year,and Php 7000 less than this amount is invested at 6% per year.The investment yield Php 8820 yearly.How much was investment
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A certain amount (x) is invested at 5% per year,and Php 7000 less than this amount is invested at 6% per year.The investment yield Php 8820 yearly.How much was investment
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Interest + Interest = Interest
0.05x + 0.06(x-7000) = 8820
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5x + 6x - 42000 = 882000
11x = 924000
x = 84000 (amt. invested at 5%)
x-7000 = 77000 (amt. invested at 6%)
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Cheers,
Stan H.
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