Discover the best answers at Westonci.ca, where experts share their insights and knowledge with you. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Jazmine wants to have $500,000 in her
savings account when she retires. She
deposits $20,000 into an account that
earns 8% interest and is compounded
quarterly. How long will it take her to
reach her goal?



Sagot :

Answer:

40.6 years

Step-by-step explanation:

A = P (1 + r/n)^nt

whereas

A = final amount

P = the principal amount

r = rate of interest

t = time in years

When the amount compounds quarterly, it means that the amount compounds 4 times in a year. i.e., n = 4n = number of times the amount is compounding.

So n = 4

A = P (1 + r/4)^4t

If A is 500,000, P is 20,000, r is 0.08

500000 = 20000(1 + 0.08/4)^4t

25 = (1+ 0.02)^4t

25 = (1.02)^4t

Take the log of both sides

ln 25 = 4t (ln 1.02)

4t = (ln 25)/(ln 1.02) = 162.55

so t = 162.55/4 = 40.6 years