SOLUTION: a boy is x inches tall now, if his height increased by 10% a year. Which of the following expressions represents his height three years from now?( answer is 1.331x show your sol

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: a boy is x inches tall now, if his height increased by 10% a year. Which of the following expressions represents his height three years from now?( answer is 1.331x show your sol      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 905345: a boy is x inches tall now, if his height increased by 10% a year. Which of the following expressions represents his height three years from now?( answer is 1.331x show your solution)
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
This is an exponential growth example. All that will be shown as help is this:

TIME____________HEIGHT
Now (0)_________x
1_______________x%2B%280.1%29x=1.1x
2_______________
________________x%281%2B0.2%2B0.1%5E2%29=1.21x
3_______________1.21x%2B1.21x%280.1%29=1.21x%2B0.121x=highlight%281.331x%29


Observe, each year is adding 10 percent of the previous year.