SOLUTION: Susan invests 2 times as much money at 12% as she does at 9%. If her total interest after
1 year is $1320, how much does she have invested at each rate?
Susan invests $ ( )
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1 year is $1320, how much does she have invested at each rate?
Susan invests $ ( )
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Question 1095261: Susan invests 2 times as much money at 12% as she does at 9%. If her total interest after
1 year is $1320, how much does she have invested at each rate?
Susan invests $ ( ) at 9% and $ ( ) at 12%. Found 2 solutions by addingup, josmiceli:Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website! 0.09x + 0.12(2x) = 1320
0.09x + 0.24x = 1320
0.33x = 1320
x = 4000 this is the amount invested at 9%
2x = 2(4000) = 8000 this is the amount invested at 12%
You can put this solution on YOUR website! Assuming simple interest:
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given:
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She invests $4,000 @ 9%
She invests $8,000 @ 12%
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check:
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OK
