# usiness math

You decide to take out an ordinary interest loan of \$30,000 at 4%, on a 90 day note.

a) In 45 days you decide to make a payment of \$10,000 on the loan. What is your new principal? Explain how you got the answer.

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1. P = Po + Po*r*t =
30,000 + 30,000*(0.04/360)*45 - 10,000 =
30,000 + 150 -10,000 = \$20,150.

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2. 👎

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