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פּוֹפּוּלָרִי Word Problems >

put 10, 000.00 into an account which earns interest compounded quarterly. After 2 years, she withdrew the entire balance of 10, 274.00 . What was the interest rate on the account?

פתרון

p u t 10, 000.00 in t o an a cco u n t w hi c h e a r n s in t eres t co m p o u n d e d q u a r t er l y . A f t er 2 ye a rs, s h e w i t h d re w t h e e n t i re ba l an ce o f 10, 274.00 . Wha t w a s t h e in t eres t r a t e o n t h e a cco u n t ?

פתרון

Rate : 1.35385 \dots %

צעדי פתרון

Translate the problem into an equation:

10274 = 10000 (1 + \frac{r}{4})^{4 \cdot 2}

10274 = 10000 (1 + \frac{r}{4})^{4 \cdot 2}, r

פתור בשביל:

r = 1.35385 \dots %

Rate : 1.35385 \dots %

דוגמאות פופולריות

7 less than 4 times a number some number plus 24 two increase by five times a number A Circle has a circumference of 22 feet. What is the circle's diameter?four times a number is 36