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Popolare Word Problems >

Maya invested 5,000 in an account paying an interest rate of 3.9% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest tenth of a year, for the value of the account to reach 6,880?

Soluzione

M a y a in v es t e d 5, 000 in an a cco u n t p a y in g an in t eres t r a t e o f 3.9% co m p o u n d e d co n t in u o u s l y . A ss u min g n o d e p os i t s or w i t h d r a w a l s a re ma d e, h o w l o n g w o u l d i t t ak e, t o t h e n e a res t t e n t h o f a ye a r, f or t h e v a l u e o f t h e a cco u n t t o re a c h 6, 880 ?

Soluzione

Time : 8.18

Fasi della soluzione

Translate the problem into an equation:

6880 = 5000 e^{0.039 t}

Risolvi per

t, 6880 = 5000 e^{0.039 t} : t = 8.18

Time : 8.18

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