SOLUTION: Susan invests 3 times as much money at 11% as she does at 8%. If her total interest after 1 year is $1230, how much does she have invested at each rate?
Susan invests $ at 8% an
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Question 812177: Susan invests 3 times as much money at 11% as she does at 8%. If her total interest after 1 year is $1230, how much does she have invested at each rate?
Susan invests $ at 8% and $ at 11%.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a=3b
.11a+.08b=1230
a=9000 at 11%, b=3000 at 8%
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