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פּוֹפּוּלָרִי Word Problems >

Jared puts 3,000 into a bank account earning 3.4% interest. Years later, when he takes the money out of the account, he has 4,073.95. About how long did he leave the money in his bank account?

פתרון

J a re d p u t s 3, 000 in t o a bank a cco u n t e a r nin g 3.4% in t eres t . Y e a rs l a t er, w h e n h e t ak es t h e m o n ey o u t o f t h e a cco u n t, h e ha s 4, 073.95. A b o u t h o w l o n g d i d h e l e a v e t h e m o n ey in hi s bank a cco u n t ?

פתרון

Time : 10.53

צעדי פתרון

Translate the problem into an equation:

4073.95 = 3000 (1 + 0.034 t)

4073.95 = 3000 (1 + 0.034 t), t

פתור בשביל:

t = 10.53

Time : 10.53

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