I would like to thank-you for taking the time to read the current problem that I am going through. I understand the system of equations concept well however in this particular question they ask for me to produce a system of equations from a certain situation and then solve it myself. Here is the problem: Pat invested $1200.00 at the beginning of the year. She placed the money in two types of bonds: one paying interest at 4% per annum and the other paying 6% per annum. At the end of the year, Pat's investment had grown to a value of $1255.00. Pat had misplaced some of her records and was wondering how much she had invested in each type of bond. Using a system of equations, determine how much Pat had invested in each type of bond. I have tried producing the answer to this question in many different ways, including marking the two different bonds as x and y, and then trying to figure out (x)0.04 and (y)0.06 and how they come together to equal $1255. However I can not seem to get the system right in order to answer the overall question. If someone could help me out with calculating the system for this question I would very much appreciate it :). Thank-you once again for all of your time.