Materials
DE Marker
15 Small White Boards
Reminders

Get out your agenda if you see your name below. You need to come to my room tomorrow.
Period 2
Anthony N.
Myranda M.
Period 7
Jacob B.

Convert the following fractions into percents.
12
1.
78
2.
5
9
3.
65
88
4.
76
87

5-3 Algebra: The Percent
Proportion
How do I solve problems using the percent proportion?

Questions:
What is the percent proportion?
Notes:
Percent Proportion – a proportion where one ratio is a fraction and the second ratio is a fraction with a denominator of 100
Example:
How do I find the percent?
17
25
=
68
100
= 68%
22 is what percent of 110?
Set up a proportion
22
110
= 𝑛
100
Solve for n n = 20, so 22 is 20% of 110

Questions:
What are the different ways of using the percent proportion?
Notes:
What number is 80% of 500?
𝑛
500
=
80
100
14 is 32% of what number?
14 𝑛
32
=
100
6 is what percent of 5?
6
5
= 𝑛
100

Work in groups of 2 using a WHITE BOARD.
SET UP the following percent proportions with the correct placement of the variable, n.
1.70 is what percent of 280?
2.What number is 60% of 90?
3.150 is 75% of what number?

Pgs. 266; 10-25
Cornell Notes
Summary