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5 votes
So totally confused please help

So totally confused please help-example-1
User Blachniet
by
6.0k points

1 Answer

7 votes

Answer:

The answer to your question is: r = 0.1

Explanation:

Data

P = $4500

A = $9000

t = 9 years

r = rate

Formula


r = \sqrt[t]{(A)/(P)} - 1\\

Substitution


r = \sqrt[9]{(9000)/(4500) - 1\\

Simplification


r = \sqrt[9]{2} - 1

Result

r = 1.08 - 1

r = 0.08 ≈ 0.1