Posted by **meg** on Sunday, May 1, 2011 at 6:33pm.

A recent graduate's student loans total $13,000. If these loans are at 4.1%, compounded quarterly, for 9 years, what are the quarterly payments

- math -
**MathMate**, Sunday, May 1, 2011 at 9:58pm
Use

R=quarterly payment

i=interest = 4.1%/4 = 0.041/4

n = 9*4 quarters = 36 quarters

P = principal, present value = $13,000

Then

P(1+i)^n = R((1+i)^n-1)/i

Solve for R, everything else is known.

I get $433.65 (quarterly payment)

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