Name: 
 

Try It Out -- Chapter 2, Lesson 7



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Estimate, and then calculate:

23 % of 80
a.
20
c.
18.4
b.
42.32
d.
28.75
 

 2. 

Estimate, and then calculate.
18.5% of  = 46.25
a.
40
c.
2500
b.
8.6
d.
250
 

 3. 

Estimate, and then calculate.

m8ch2l7_files/i0040000.jpg = %
a.
78%
b.
87%
c.
86%
 

 4. 

Ali got 38 out of 40 on her last math test. Write a proportion that you could use to determine what % Ali got on the test.

a.
m8ch2l7_files/i0050000.jpg
b.
m8ch2l7_files/i0050001.jpg
c.
m8ch2l7_files/i0050002.jpg
 

 5. 

Use the correct proportion from Question 4 to determine what % Ali got on the test.
a.
38%
c.
15.2%
b.
95%
d.
98%
 

 6. 

In Christopher’s class, 92% of all the students in the class have Internet access at home.  If his class has a total of 25 students, how many students have Internet access?
Write a proportion that you could use to solve the problem.
a.
m8ch2l7_files/i0070000.jpg
b.
m8ch2l7_files/i0070001.jpg
c.
m8ch2l7_files/i0070002.jpg
 

 7. 

Use the correct proportion from Question 6 to determine the number of students in Christopher’s class that have internet access at home.
a.
27 students
b.
24 students
c.
23 students
 

 8. 

Robert is saving for a new computer.  He plans on depositing 20% of his weekly paycheque into his savings account.  Last week he deposited $99.44 into his savings account.  How much was his weekly pay?

Write a proportion that you could use to solve the problem.
a.
m8ch2l7_files/i0090000.jpg
b.
m8ch2l7_files/i0090001.jpg
c.
m8ch2l7_files/i0090002.jpg
 

 9. 

Use the correct proportion from Question 8 to determine how much Robert’s weekly pay was.
a.
$497.20
b.
$19.89
c.
$79.55
 

 10. 

Dory bought herself a dress on sale for 25% off and saved $9.00.  How much did the dress cost originally?
a.
$27
b.
$2.25
c.
$36
 



 
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