Helen invests a total of 8,500 in three interest earning accounts. The amount of money invested...

 

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Helen invests a total of 8,500 in three interest earning accounts. The amount of money invested in each account at the beginning of the year are x, y and z. The annual rates of interest are 2%, 3% and 6% respectively. The sum of the total interest earned at the end of the first year on the three accounts is 380. If the amount z is equal to the sum of the amounts in the other two accounts, then use Cramer's rule to find how much is invested in each account. i.e., find x, y and z. [20 marks] Helen invests a total of 8,500 in three interest earning accounts. The amount of money invested in each account at the beginning of the year are x, y and z. The annual rates of interest are 2%, 3% and 6% respectively. The sum of the total interest earned at the end of the first year on the three accounts is 380. If the amount z is equal to the sum of the amounts in the other two accounts, then use Cramer's rule to find how much is invested in each account. i.e., find x, y and z. [20 marks]

Answer rating: 100% (QA)

To find the values of x y and z using Cramers rule we first need to set up a system of equations bas... View the full answer