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פּוֹפּוּלָרִי Word Problems >

7800 dollars is placed in an account with an annual interest rate of 5%. To the nearest tenth of a year, how long will it take for the account value to reach 13200 dollars?

פתרון

7800 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 t e n t h o f a 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 13200 d o ll a rs ?

פתרון

Time : 13.85

צעדי פתרון

Translate the problem into an equation:

13200 = 7800 (1 + 0.05 t)

13200 = 7800 (1 + 0.05 t), t

פתור בשביל:

t = 13.85

Time : 13.85

דוגמאות פופולריות

Q1. Use the classical definition to find the probability of the following event: Rolling a fair die once and getting a number less than 2. Express your answer as a decimal rounded to one decimal place.the sum od two consecutive numbers is 29. find the number some number plus two is equal to the number divided by twelve Ben is 12 years older than Ishaan. Ben and Ishaan first met two years ago. Three years ago, Ben was4 times as old as Ishaan..six less then 3 times a number is 51