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Mathematics 22 Online
OpenStudy (anonymous):

hello!!!???? can somebody please help me!?!?!!? omg!

jimthompson5910 (jim_thompson5910):

go ahead and post the question

OpenStudy (anonymous):

jimthompson5910 (jim_thompson5910):

you'll use A = P(1+r)^t given to you

jimthompson5910 (jim_thompson5910):

in this case, P = 400 is the amount invested, r = 0.08 is the interest rate in decimal form and t is unknown. We want to reach A = 5500

jimthompson5910 (jim_thompson5910):

A = P(1+r)^t 5500 = 400(1+0.08)^t now solve for t

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