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Popular Word Problems >

4500 dollars is placed in an account with an annual interest rate of 7%. To the nearest tenth of a year, how long will it take for the account value to reach 10800 dollars?

Solution

4500 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 7%. 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 10800 d o ll a rs ?

Solution

Time : 20

Solution steps

Translate the problem into an equation:

10800 = 4500 (1 + 0.07 t)

Solve for

t, 10800 = 4500 (1 + 0.07 t) : t = 20

Time : 20

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