Chapter 7 Percent Worksheet With Answers Page 20
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477.2
Solving Percent Problems Using Percent Equations
and Proportions
Method 2: PERCENT PROPORTIONS (review)
1. Write percent proportions
1
Consider an example: we know that
= 50%, re-write:
2
1
50
=
The amount-to-base ratio
The percent ratio
2
100
Percent Proportion
To translate a percent sentence to a percent proportion, use
the following form:
amount is to base as percent is to 100
part is to whole as percent is to 100
amount
percent
or
part
percent
=
=
base
100
whole
100
20
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