Problema Solution

Steve's sells widgets for $1 each. Steve needs to raise his price to $1.80. What is the equation if he wants to raise the price 5% each week until the price reaches $1.80?

Answer provided by our tutors

Price after t weeks is given as

 

P = P0(1+t/100)^t

=> 1.80 = 1(1+5/100)^t

=> 1.80 = 1.05^t => t = ln(1.80)/ln(1.05)

=> t = 12.04 weeks