how much did michelle borrow at 4.2% and 6.5%

Michelle borrows a total of $5500 in student loans from two lenders. One charges 4.2% simple interest and the other charges 6.5% simple interest. She is not required to pay off the principal or interest for 2 yr. However, at the end of 2 y, she will owe a total of $485 for the interest from both loans. How much did she borrow from each lender? Part: 0/2 Part 1 of 2 Michelle borrowed S at 4.2%