# SOLUTION: The problem is: If sales of ipods increase by 15% each week and the store plans to sell 100 ipods the first week (which the store calls the first week 0weeks) how many ipods will i

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 Click here to see ALL problems on Equations Question 156896: The problem is: If sales of ipods increase by 15% each week and the store plans to sell 100 ipods the first week (which the store calls the first week 0weeks) how many ipods will it sell by the end of the 4th week. Find the equation to this problem. I have tried to find the equation to this problem for a couple of hours. Some of my thoughts are: y=(100x0.15)X I just really don't understand how to find the equation. Thank you so much for your help, I am desperate and driving my mother up the wall. DanielleAnswer by ankor@dixie-net.com(15660)   (Show Source): You can put this solution on YOUR website!If sales of ipods increase by 15% each week and the store plans to sell 100 ipods the first week (which the store calls the first week 0 weeks) how many ipods will it sell by the end of the 4th week. Find the equation to this problem : Let x = no. of weeks f(x) = no. sold : f(x) = 100*1.15^x ; In this problem, x = 4: f(x) = 100 * 1.15^4 ; Find 1.15^4 on a calc f(x) = 100 * 1.479 f(x) ~ 148 by the end of the 4th week : You can see in week 0; 100 * 1.15^0 = 100 * 1 and in week one: 100 * 1.15^1 = 115 units as you would expect ; Did this help you understand this, and be kind to your dear mother?