SOLUTION: Mr. Baum invested $8000, a part at 4% aand the rest at 9% the total annual income was $495. Find the amount invested at each rate

SOLUTION: Mr. Baum invested $8000, a part at 4% aand the rest at 9% the total annual income was $495. Find the amount invested at each rate

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Question 389903: Mr. Baum invested $8000, a part at 4% aand the rest at 9% the total annual income was $495. Find the amount invested at each rate
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
0.04x+0.09(8000-x)=495
0.04x+720-0.09x=495
-0.05x=-225
x=$4,500
8000-x=$3,500
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