1. Percent – Base and rate Problems You might know the “base / rate” problems as “is / of” problems. For example, 23 is what percent of 50 ?

2. Percent – Base and rate Problems You might know the “base / rate” problems as “is / of” problems. For example, 23 is what percent of 50 ? Every one of these problems can be set up with the same format.

3. Percent – Base and rate Problems You might know the “base / rate” problems as “is / of” problems. For example, 23 is what percent of 50 ? Every one of these problems can be set up with the same format : To set up the problem, go thru the given information and insert known values into the format…

4. Percent – Base and rate Problems You might know the “base / rate” problems as “is / of” problems. For example, 23 is what percent of 50 ? Every one of these problems can be set up with the same format : To set up the problem, go thru the given information and insert known values into the format… In our example above…23 is what percent of 50

5. Percent – Base and rate Problems You might know the “base / rate” problems as “is / of” problems. For example, 23 is what percent of 50 ? Every one of these problems can be set up with the same format : To set up the problem, go thru the given information and insert known values into the format… In our example above…23 is what percent of 50

6. Percent – Base and rate Problems You might know the “base / rate” problems as “is / of” problems. For example, 23 is what percent of 50 ? Every one of these problems can be set up with the same format : To set up the problem, go thru the given information and insert known values into the format… In our example above…23 is what percent of 50 It’s now a basic proportion and you find what is missing…in this case %

7. Percent – Base and rate Problems You might know the “base / rate” problems as “is / of” problems. For example, 23 is what percent of 50 ? A short cut for solving proportions, one that gets all the Algebra OUT is this : 1. Begin with the partner of the unknown ( red box ) 2. Move around the outside the proportion ( green box ) 3. Divide, then multiply to get the unknown Divide Multiply

8. Percent – Base and rate Problems You might know the “base / rate” problems as “is / of” problems. For example, 23 is what percent of 50 ? A short cut for solving proportions, one that gets all the Algebra OUT is this : 1. Begin with the partner of the unknown ( red box ) 2. Move around the outside the proportion ( green box ) 3. Divide, then multiply to get the unknown Divide Multiply

9. Percent – Base and rate Problems EXAMPLE # 2 : What is 35 % of 80

10. Percent – Base and rate Problems EXAMPLE # 2 : What is 35 % of 80

11. Percent – Base and rate Problems EXAMPLE # 2 : What is 35 % of 80

12. Percent – Base and rate Problems EXAMPLE # 2 : What is 35 % of 80 Divide Multiply

13. Percent – Base and rate Problems EXAMPLE # 3 : 15 is 20 % of what number

14. Percent – Base and rate Problems EXAMPLE # 3 : 15 is 20 % of what number Divide Multiply