Lesson 9.1 Percents And Fractions Math Worksheet Page 4
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Algebra
Write the percent as a fraction. Then solve the proportion.
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3
9
1
3
x%
y%
z%
w%
41.
42.
43.
44.
2
0
2
5
1
0
5
0
Extended Problem Solving
In Exercises 45–47, use the following
information. The atmosphere of Mars is made up of about 95% carbon
dioxide and about 3% nitrogen.
45. Write each percent as a fraction.
Interpret
About what percent of the atmosphere of Mars consists of
46.
gases other than carbon dioxide and nitrogen? What fraction is this?
Analyze
A probe on Mars took a 500 milliliter sample of the
47.
atmosphere. How many milliliters of the sample would you expect to
be gases other than carbon dioxide and nitrogen?
Order the given ratios from least to greatest.
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4
1
48. 6 to 25, 23%,
49. 81%,
, 4 to 5
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5
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Challenge
A tiling pattern is composed of 68 blue tiles and 132 white
50.
tiles. What percent of the tiles are blue?
Mixed Review
Use algebra to solve the proportion.
(Lesson 8.4)
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0
3
0
a
7
4
8
b
2
5
5
51.
52.
53.
54.
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1
n
3
2
8
3
3
1
1
c
1
2
55. You build a scale model of your house. The model is 8 inches long, and
your house is 40 feet long. What is the model’s scale?
(Lesson 8.6)
Basic Skills
Find the product.
56. 4.8
6.7
57. 0.006
0.06
58. 7.52
0.2
59. 9.78
12.234
Test-Taking Practice
Multiple Choice
A bake sale raised $300 for a school trip. If 20% of the
60.
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money covered bake sale expenses, how much went toward the trip?
State Test Practice
A. $20
B. $60
C. $240
D. $280
On opening day of trout season, 8 out of every
Multiple Choice
61.
10 fishermen caught a trout. What percent did not catch a trout?
F. 2%
G. 8%
H. 20%
I. 80%
418
Chapter 9
Percents
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