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פּוֹפּוּלָרִי Word Problems >

An investment of 8,600.00 at 4.7% p.a. compounded quarterly is now valued at12,590.72. How long ago was the investment made?

פתרון

A n in v es t m e n t o f 8, 600.00 a t 4.7% p . a . co m p o u n d e d q u a r t er l y i s n o w v a l u e d a t 12, 590.72. Ho w l o n g a g o w a s t h e in v es t m e n t ma d e ?

פתרון

Time : 8.16

צעדי פתרון

Translate the problem into an equation:

12590.72 = 8600 (1 + \frac{0.047}{4})^{4 t}

12590.72 = 8600 (1 + \frac{0.047}{4})^{4 t}, t

פתור בשביל:

t = 8.16

Time : 8.16

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