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פּוֹפּוּלָרִי Word Problems >

2100 dollars is placed in an account with an annual interest rate of 5%. To the nearest year, how long will it take for the account value to reach 5100 dollars?

פתרון

2100 d o ll a rs i s pl a ce d in an a cco u n t w i t h an ann u a l in t eres t r a t e o f 5%. T o t h e n e a res t ye a r, h o w l o n g w i ll i t t ak e f or t h e a cco u n t v a l u e t o re a c h 5100 d o ll a rs ?

פתרון

Time : 28.57

צעדי פתרון

Translate the problem into an equation:

5100 = 2100 (1 + 0.05 t)

5100 = 2100 (1 + 0.05 t), t

פתור בשביל:

t = 28.57

Time : 28.57

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