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OpenStudy (anonymous):
A mother wants to invest $6000 for her children's education. She invests a portion of the money in a bank certificate of deposit (CD account) which earns 4% and the remainder in a savings bond that earns 7%. If the total interest earned after one year is $360, how much money was invested at each rate?
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OpenStudy (anonymous):
0.04x + 0.07y = 360 x + y = 6000 sove this system for x and y and you have the amounts you want
OpenStudy (anonymous):
*solve
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