Youtube videos by Julie Harland are organized at http://YourMathGal.com. Uses 2 variables and a system of equations to solve: A total of $7,000 was invested in two simple interest accounts such that the annual interest earned in each account was the same. The interest rates of the accounts were 15% and 20%. How much was invested in each account?
invest2-2var.mp4<br />For more great math videos visit: www.youtube.com/user/videosbyjulieharland/videos