4000 grows to 4341.82 in 2 years under continuous compounding. Find the interest rate. Round to the nearest tenth of a percent

해법

4000 g ro w s t o 4341.82 in 2 ye a rs u n d er co n t in u o u s co m p o u n d in g . F in d t h e in t eres t r a t e . R o u n d t o t h e n e a res t t e n t h o f a p erce n t

Rate : 4.1%

솔루션 단계

Translate the problem into an equation:

4341.82 = 4000 e^{r \cdot 2}

r

해결 대상

, 4341.82 = 4000 e^{r \cdot 2} : r = 4.09996 \dots %

Rate : 4.09996 \dots %

동그란

4.09996 \dots

가장 가까운 곳에\mathrm{열 번째}:

4.1

Rate : 4.1%