Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

Pls help urgent help needed! What annual interest rate compounded annually is required to add 50% to an investment in exactly 20 years? Write your answer to 2 decimal places.

See more answers at
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly


Get your free account and access expert answers to this and thousands of other questions

Well, let's call that interest rate r... And your initial investment a.... So... \[\huge a(1+r)^{20}=1.5a\] Now solve for r.
@terenzreignz so what will the initial investment be and how did u get 1.5

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

a is the initial investment, right? And at the end of 20 years, it has to increase by 50% so... it has to be \[\huge a + \color{blue}{<50\% \ of \ a >}=a+0.5a=1.5a\]
You can take the first step and do away with the a, by dividing both sides by a... \[\huge (1+r)^n=1.5\]
Sorry, replace n with 20, my bad :)
thanks again @terenzreignz
No problem :)
which is approximately .02048 = 2.048%

Not the answer you are looking for?

Search for more explanations.

Ask your own question