Model this situation w/ a linear system:

Question

Melissa borrowed $10, 000 for her
university tuition. She borrowed part of the money at an annual interest rate of 2.4 % and the rest of the money at an annual rate of 4.5 %. Her total annual interest payment is $ 250.50

Answer 1

Since you did not state any question, I will anticipate that you want to know how much was borrowed for each rate

amount borrowed at 2.4% --- x
amount borrowed at 4.5 % --- 10000-x

so solve for x

.024x + .045(10000-x) = 250.5