SOLUTION: Sarah invests money in two simple interest accounts. She invests four times as much in an account paying 12% as she does in an account paying 6%. If she earns $162.00 in interest i
Question 1002229: Sarah invests money in two simple interest accounts. She invests four times as much in an account paying 12% as she does in an account paying 6%. If she earns $162.00 in interest in one year from both accounts combined, how much did she invest altogether?
Total Principal in Both Accounts = Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! Let's call what she invests at 6%, x.
Then what she invests at 12% would be 4x.
The set up becomes
.06x + .12(4x) = 162
.06x + .48x = 162
.54x = 162
x = 300
4x = 1200
Total invested = $1500
