SOLUTION: Jenny invested $2,000 at an interest rate of 5%. The amount of money, ma, in Jenny’s account after t years can be represented using the equation ma=2000(1.05)^t. If Jenny would hav

Algebra ->  Expressions-with-variables -> SOLUTION: Jenny invested $2,000 at an interest rate of 5%. The amount of money, ma, in Jenny’s account after t years can be represented using the equation ma=2000(1.05)^t. If Jenny would hav      Log On


   



Question 1057826: Jenny invested $2,000 at an interest rate of 5%. The amount of money, ma, in Jenny’s account after t years can be represented using the equation ma=2000(1.05)^t. If Jenny would have invested the same amount of money at the same interest rate four years ago, the equation representing the amount of money, mb, in her account would be represented using the equation mb=2000(1.05)^t+4. Which of the following is equivalent to mb?
Answer by solve_for_x(190) About Me  (Show Source):
You can put this solution on YOUR website!
The expression for "mb" can be simplified as:

mb+=+2000%281.05%29%5E%28t%2B4%29

mb+=+2000%281.05%29%5Et+%2A+%281.05%29%5E4

mb+=+2000+%2A+%281.2155%29+%2A+%281.05%29%5Et

mb+=+%282431.01%29+%2A+%281.05%29%5Et

Edited to add: You want the third of the four solutions that you showed in your "thank you" note.