SOLUTION: a friend lent $21,200 to dawn w.monroe the owner of a comic book store. she repaid the loan at the end of 9 months at 8 1/2 % simple interest. what total amount did dawn pay her fr

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: a friend lent $21,200 to dawn w.monroe the owner of a comic book store. she repaid the loan at the end of 9 months at 8 1/2 % simple interest. what total amount did dawn pay her fr      Log On


   

Question 985901: a friend lent $21,200 to dawn w.monroe the owner of a comic book store. she repaid the loan at the end of 9 months at 8 1/2 % simple interest. what total amount did dawn pay her friend?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Figure the interest first and then add it.
I=prt=21,200*(3/4)*.085. The 3/4 is 9 months or 3/4 of a year.
I=$1351,50
Repaid is $22,551.50