Algebra 1 Word Problems - Percents
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Play the Percentages
Word Problems - Percents

 
 Sometimes problems aren't written out
 so that we can start working on them right away.
 
 Sometimes they are written in code.
 
 Before we can work on the problem,
 we have to decode it.
 
 Here comes one now ...
 

 What is 10 percent of 100?

 
 Here's how the code for a percent problem works.
 
What means X (the unknown quantity)
is means = (equals)
of means x (multiply)

percent is the combination of

per means / (divide)
cent means 100 (one hundred)
 
 So now we can decode the problem ...
 

 

 

 So what is 10 percent of 100?

 

10

 
 Let's try another one ...
 
 Example:
 

 What percent of 85 is 17?

 

 This one is asked a little differently,
 but you use the same translation dictionary ...
 

 
 Multiply both sides by 100.
 

 
 Divide both sides by 85 and simplify ...
 

 

 So what percent of 85 is 17?

 

20

 
 Sometimes they throw you a curve
 and don't use the word percent.
 Instead they use this little squiggle.
 

%

 

 It means PERCENT!

 

 It also means divided by 100!

 

   copyright 2005 Bruce Kirkpatrick

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