Fractions, Decimals, And Percents Worksheet

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Fractions, Decimals, and
Percents
Goal: Rewrite fractions, decimals, and percents.
Vocabulary
Circle graph:
A type of graph that represents data as parts of a circle.
1
Writing a Fraction as a Percent
E X A M P L E
Survey The circle graph at the right
Preferred Breakfast Foods
shows the results of a survey of what
400 students prefer to order for
Other 20
breakfast at a restaurant.
French Toast 30
What percent of students prefer
Pancakes
Omelet 74
to order pancakes?
180
Eggs
96
Solution
To write the fraction of students who prefer to order pancakes as a percent,
1
8
0
write a percent proportion with
and solve for p.
4
0
0
Remember that each
1
8
0
p
Write a percent proportion.
part of a circle graph is
4
0
0
10
0
a percent of the data.
The sum of the percents
1
8
0
p
p
p
100
100
Multiply each side by 100.
must equal 100% because
4
0
0
10
0
the circle graph represents
all of the data.
45
p
Simplify.
ANSWER
45%
of the students prefer to order pancakes.
Y
Write the fraction as a percent.
our turn now
7
1
1
3
7
1.
2.
3.
4.
1
0
2
5
5
0
8
70%
44%
6%
87.5%
|
Chapter 7
Notetaking Guide
142

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