SOLUTION: A machine enlarges a picture 20%. If that enlarger is used 4 times, how many times as large as the original picture will the final picture be?
Question 84588: A machine enlarges a picture 20%. If that enlarger is used 4 times, how many times as large as the original picture will the final picture be? Answer by Scriptor(36) (Show Source):
You can put this solution on YOUR website! Suppose the size of your picture is x.
After the first time it wil be 20% bigger: that means that the size will become
120% * x = 1.2x
The second time we use the machine, it grows again 20%. But keep in mind that we already have a larger picture now.
After the second time we get:
120% * 1.2x = 1.2*(1.2x)
And so on...
After 4 times the picture will be (1.2)^4 times x = 2.07 x
Answer: 2.07
Greets
(