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### Course: Pre-algebra>Unit 4

Lesson 1: Intro to percents

# Meaning of 109%

In this lesson, we learn how to represent 109% using shading. We discover that 109% is equivalent to 109 per 100, or 109/100 as a fraction. By shading a complete 10x10 square and an additional 9 squares, we visually demonstrate 109% of a whole square. Created by Sal Khan and Monterey Institute for Technology and Education.

## Want to join the conversation?

• Am i the only one who has not been here for 9 years??
• been here 17 years
• well because centi means hundered and thats why it says perCENT
• So if the percent is greater than 100, the value is more than one?
• Yes. 1 is equal to 100%. So, any percentage over 100% is greater than 1.
• so im using graphing paper would i need to use 2 pieces of graphing paper?
• Was this not 109 out of 200 because you used 2 squares of 100
• I see you are confused, so it wouldn´t be 109/200 it would be 109/100. He used two squares because one square stood for 100% and the other stood for 9%.
Hope this helps. :)
• How do you do 12 percent of 144 percent?
• Since 12% = 12/100 and and 144% = 144/100, you could do (12/100)*(144/100) = 0.1728 or 17.28%.
• so basically you shade in a hundred (a whole) and the number of squares that are the number that makes it improper in the next square...
• what percent would it be if you combine both of the hundred blocks?
• 200 percent