1. Using the Percent Proportion
𝒊𝒔 𝒐𝒇 = % 𝟏𝟎𝟎

2. Percent Proportions
𝑛𝑢𝑚𝑏𝑒𝑟# 𝑏𝑒𝑓𝑜𝑟𝑒 𝑡ℎ𝑒 𝑤𝑜𝑟𝑑 "𝒊𝒔" 𝑛𝑢𝑚𝑏𝑒𝑟 𝑎𝑓𝑡𝑒𝑟 𝑡ℎ𝑒 𝑤𝑜𝑟𝑑 "𝒐𝒇" = # 𝑤𝑖𝑡ℎ 𝑡ℎ𝑒 % 𝑠𝑖𝑔𝑛 100

3. Percent Proportion – Problem #1
55% of 180 is what number?
𝒏 𝟏𝟖𝟎 = 𝟓𝟓 𝟏𝟎𝟎
𝒏=𝟗𝟗

4. Percent Proportion – Problem #2
What is 40% of 64?
𝒏 𝟔𝟒 = 𝟒𝟎 𝟏𝟎𝟎
𝒏=𝟐𝟓.𝟔

5. Percent Proportion – Problem #3
What percent of 20 is 14?
𝟏𝟒 𝟐𝟎 = 𝒏 𝟏𝟎𝟎
𝒏=𝟕𝟎
70%

6. Percent Proportion – Problem #4
45 is 60% of what number?
𝟒𝟓 𝒏 = 𝟔𝟎 𝟏𝟎𝟎
𝒏=𝟕𝟓

7. Percent Proportion – Problem #5
What is 25% of 80?
𝒏 𝟖𝟎 = 𝟐𝟓 𝟏𝟎𝟎
𝒏=𝟐𝟎

8. Percent Proportion – Problem #6
What percent of 25 is 15?
𝟏𝟓 𝟐𝟓 = 𝒏 𝟏𝟎𝟎
𝒏=𝟔𝟎
60%

9. Percent Proportion – Problem #7
45% of what number is 90?
𝟗𝟎 𝒏 = 𝟒𝟓 𝟏𝟎𝟎
𝒏=𝟐𝟎𝟎

10. Percent Proportion – Problem #8
25% of what number is 30?
𝟑𝟎 𝒏 = 𝟐𝟓 𝟏𝟎𝟎
𝒏=𝟏𝟐𝟎

11. Percent Proportion – Problem #9
4 is what percent of 20?
𝟒 𝟐𝟎 = 𝒏 𝟏𝟎𝟎
𝒏=𝟐𝟎
20%

12. Percent Proportion – Problem #10
34 is 20% of what number?
𝟑𝟒 𝒏 = 𝟐𝟎 𝟏𝟎𝟎
𝒏=𝟏𝟕𝟎

13. Percent Proportion – Problem #11
12 is what percent of 30?
𝟏𝟐 𝟑𝟎 = 𝒏 𝟏𝟎𝟎
𝒏=𝟒𝟎
40%

14. Percent Proportion – Problem #12
15% of 60 is what number?
𝒏 𝟔𝟎 = 𝟏𝟓 𝟏𝟎𝟎
𝒏=𝟗

15. Percent Proportion – Problem #13
A store is selling t-shirts that cost $12 for 20% off. What the discount?
𝒏 𝟏𝟐 = 𝟐𝟎 𝟏𝟎𝟎
𝒏=𝟐.𝟒
The discount is $2.40

16. Percent Proportion – Problem #14
Demi got 15 out of 25 questions correct on her test. What percent is this?
𝟏𝟓 𝟐𝟓 = 𝒏 𝟏𝟎𝟎
𝒏=𝟔𝟎
60%