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人気のある >

\$6000 grows to \$8329.13 in 8 years under continuous compounding. Find the interest rate. Round to the nearest tenth of a percent.

解

$6000 g ro w s t o $8329.13 in 8 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 .

解

Rate : 4.1%

解答ステップ

Translate the problem into an equation:

8329.13 = 6000 e^{r \cdot 8}

r

を解く

8329.13 = 6000 e^{r \cdot 8} : r = 4.09999 \dots %

Rate : 4.09999 \dots %

4.09999 \dots

を最も近い十分の一に四捨五入する:

4.1

Rate : 4.1%

人気の例

The sum of 2 times a number and 6 is 8.72 is 40% of what number?twice the 差 of a number and 6 is at most 22 direct proportions 10 bananas cost\$1.50 what is the cost of 2 bananas Joey makes quarterly deposits of 750 into his IRA. If his IRA pays 2% compounded quarterly, how much is in the account after 20 years?