An amount of $21,000 is borrowed for 10 years at 3.25% interest, compounded annually. If the loan is paid in full at the end of
that period, how much must be paid back?
1 answer:
The formula for total loan cost is attached.
10 years = 120 payments
MONTHLY Interest = .0325 / 12 = <span> <span> <span> 0.0027083333 </span> </span> </span>
total = <span>0.0027083333 * 21,000 * 120 / (1-(1</span><span><span>.0027083333)-120 </span> </span>
total = 6,825 / (1- <span> <span> <span> 0.7228448406 </span> </span> </span> )
total = 6,825 / <span> <span> <span> 0.2771551594 </span> </span> </span>
total = <span> <span> <span> 24,625.20 </span> </span> </span>
10 years = 120 payments
MONTHLY Interest = .0325 / 12 = <span> <span> <span> 0.0027083333 </span> </span> </span>
total = <span>0.0027083333 * 21,000 * 120 / (1-(1</span><span><span>.0027083333)-120 </span> </span>
total = 6,825 / (1- <span> <span> <span> 0.7228448406 </span> </span> </span> )
total = 6,825 / <span> <span> <span> 0.2771551594 </span> </span> </span>
total = <span> <span> <span> 24,625.20 </span> </span> </span>
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Answer:
Option A is correct (17,11).
Step-by-step explanation:
6x - 9y = 3
3x - 4y =7
it can be represented in matrix form as
A=
X=
B=
i.e, AX=B
or X= A⁻¹ B
A⁻¹ = 1/|A| * Adj A
determinant of A = |A|= (6*-4) - (-9*3)
= (-24)-(-27)
= (-24) + 27 = 3
so, |A| = 3
Adj A=
A⁻¹ = /3
A⁻¹ =
X= A⁻¹ B
X=
X=
X=
X=
x= 17, y= 11
solution set= (17,11).