A mother wants to invest $13,000.00 for her sons future education. She invests a portion of the money in a bank certificate of deposit (CD account) which earns 4% and the remainer in a savings bond that earns 7%. If the total interest earned after one year is $780.00, how much money was invested in the CD account?
The total earned after one year is $780.00
How much money was invested in the CD account?