business math
posted by Joyce .
you take out a loan for $20,000 simple interest loan at 4% on August 21 and in 45 days you pay off $8,000 of the loan. What is your new principal?

P = Po + Po(0.04/360)*45
20000 + 20000(0.04/360)*45 = $20,100 after 45 days.
Bal. = 201008000 = $12,100