SOLUTION: Carla invested $28,000, part at 14% and part at 9%. If the total interest at the end of the year is $3,370, how muc did she invest at 14%
These problems confuse me each time, ca
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-> SOLUTION: Carla invested $28,000, part at 14% and part at 9%. If the total interest at the end of the year is $3,370, how muc did she invest at 14%
These problems confuse me each time, ca
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Question 70425: Carla invested $28,000, part at 14% and part at 9%. If the total interest at the end of the year is $3,370, how muc did she invest at 14%
These problems confuse me each time, can you help? Thank you so much! Answer by checkley75(3666) (Show Source):
You can put this solution on YOUR website! .14x+.09(28000-x)=3370
.14x+2520-.09x=3370
.14x-.09x=3370-2520
.05x=850
x=850/.05
x=17000 amount invested @ 14%
28000-17000=11000 invested @ 9%
proof
17000*.14+11000*.09=3370
2380+990=3370
3370=3370
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