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人気のある Word Problems >

how long it will take an initial investment of 12,750 to grow to 36,975, if the account earns 11.5% interest per year, compounded quarterly. Round the solution to two decimal places.

解

h o w l o n g i t w i ll t ak e an ini t ia l in v es t m e n t o f 12, 750 t o g ro w t o 36, 975, i f t h e a cco u n t e a r n s 11.5% in t eres t p er ye a r, co m p o u n d e d q u a r t er l y . R o u n d t h e so l u t i o n t o tw o d ec ima l pl a ces .

解

Time : 9.39

解答ステップ

Translate the problem into an equation:

36975 = 12750 (1 + \frac{0.115}{4})^{4 t}

t

を解く

36975 = 12750 (1 + \frac{0.115}{4})^{4 t} : t = 9.39081 \dots

Time : 9.39081 \dots

9.39081 \dots

を最も近い

2 d ec ima l pl a ces

に四捨五入する:

9.39

Time : 9.39

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