algebra/math
posted by apryl .
Find the amount of interest and the monthly payment for the loan. Purchase a car for $42,700 at 2.5% addon rate for 5 years. (Round your answers to the nearest cent.)
$ interest
$ per month

Pt = Po*r*t / (1  (1+r)^t),
r = (2.5% / 12) / 100% = 0.002083 = monthly % rate expressed as a decimal.
t = 12mo/yr * 5yrs = 60 months.
Pt=42700*0.002083*60 / (1(1.002083)60
=5337.4991 / 0.117388323=$45,468.74
Int. = 45,468.74  42700 = $2768.74
Monthly=Pt / t=45468.74 / 60 = $757.81 
find the amount of interest and monthly payment for loan. Purcase a living room set for 3,900 at 12% addon interest for 2 years. round your monthly payment to the nearest cent.
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