1. Solving Percent Problem with Equations (7.2) Proportions (7.3)
Section 7.2 & 7.3
Solving Percent Problem with Equations (7.2)
Proportions (7.3)

2. Solving Percent Problem with Equations
Translate Words
of → multiplication
is → equals
What number → unknown variable (x)
What percent → unknown percent (n%)

3. Example Solve the percent problem with equation.
15 is 45% of what number?

4. Example Solve the percent problem with equation.
What percent of 120 is 76.8?

5. Solving Percent Problem with Proportion
Percent : value without the percent symbol, %
Base : number that appears after the word of.
Amount : part compared to whole value.

6. Example Solve the percent problem with proportions.
15 is 45% of what number?

7. Example Solve the percent problem with proportions.
What percent of 120 is 76.8?

8. Example
Solve the percent problem.
9.2 is what percent of 92?

9. Example
Solve the percent problem.
What number of 25% is 375?

10. Example
Solve the percent problem.
What number is 36% of 80?

11. Example
Solve the percent problem.
2.4% of 26 is what number?

12. Example
Solve the percent problem.
120% of what number is 42?