Problema Solution

Chris invests a total of $10,500 in two accounts paying 15% and 4% simple interest. How much was invested in each account if after one year the total interest was $640.00

Answer provided by our tutors

Let

x = the money invested at 15%

y = the money invested at 4%

x + y = 10500

0.15x + 0.04y = 640

........

click here to see the system of equations solved for x and y

........

x = $2,000

y = $8,500

$2,000 were invested at 15% while $8,500 were invested at 4% simple interest.