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Lesson 7-8 Pages 323-325
The Percent Proportion
What you will learn!
How to solve problems using the percent
proportion.
Percent proportionPercent proportionPartPartBaseBase
What you really need to know!
A percent proportion compares part of a quantity to the whole quantity, called the base, using a percent.
What you really need to know!
The percent proportion can be written as:
100
%
base
part
What you really need to know!
The number near the word “is” is the part! The number after the word “of” is the base!
What you really need to know!
)(
)(
ofbase
ispart
Example 1:
What percent of 24 is 18?
BASE PART
100
%
base
part
100
%
24
18
10024
18 p p2410018
p241800 p7575%
Example 2:
What number is 30% of 150?
BASEPERCENT
100
%
base
part
100
%30
150
part
30150100 a
4500100 a 45a45
100
30
150
a
Example 3:
12 is 80% of what number?
PERCENTPART
100
%
Base
Part
100
%8012
Base
1001280 b
120080 b 15b15
100
8012
b
Page 325
Guided Practice
#’s 3-6
Pages 323-324 with someone at home and study
examples!
Read:
Homework: Page 325
#’s 7-22 all
#’s 24-28
Lesson Check Ch 7
Lesson Check 7-8
Page
582
Lesson 7-8
Study Guide and Review
Pages
326-328
#’s 1-57(Odd answers in back of book)
Prepare for Test!
Page
329
#’s 1-25 Lesson Check 7-8
Lesson Check Ch 7
Lesson Check Ch 7
Prepare for Test!
Pages
330-331
#’s 1-17
What you really need to know!
The word “of” between two numbers means to multiply!
The word “is” between two numbers means to divide!
