1. To Start: 10 Points
Solve the Proportions:
2 3𝑏 = 2 3
3 3𝑏+2 = 2 𝑏−4

2. Chapter 2: Solving Equations
Section 2.9: Percents

3. Finding Percents
Whenever we have a percent, put it over 100! Ex. 35% = We need to do this every time!! When we take a percent of a number, we are taking a part of the whole number. We always want to put this in fraction form also. Ex. 22 of 60 = 𝑝𝑎𝑟𝑡 𝑤ℎ𝑜𝑙𝑒 = We need to always put the part over the whole!!

5. 54 90 = 𝑝 100
=90𝑝
5400=90𝑝
60=𝑝

6. Practice
What percent of 70 is 21?
21 70 = 𝑝 100
2100=70𝑝
P=30%

7. Practice
What percent of 50 is 60?
60 50 = 𝑝 100
6000=50𝑝
P=120%

9. 63 84 = 𝑝 100
𝑝=75%
=84𝑝
6300=84𝑝

10. Practice
What is 35% of 80?
𝑥 80 =
100𝑥=35 80
X=28

11. Practice
What is 25% of 144?
𝑥 144 =
100𝑥=144 25
X=36

12. Practice
What is 45% of 70?
𝑥 70 =
100𝑥=45 70
X=31.5

13. Homework!!!!
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