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Math 8 LG 2 Practice Quiz #4



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

 1. 

Write 9% as a decimal.
a.
0.09
b.
0.9
c.
9
d.
0.009
 

 2. 

The hundred chart represents 100%. What fraction of the chart is shaded?
Write the fraction as a percent.
mc002-1.jpg
a.
mc002-2.jpg; 24%
b.
mc002-3.jpg; 31.6%
c.
mc002-4.jpg; 76%
d.
mc002-5.jpg; 20%
 

 3. 

Write the shaded part of the diagram as a fraction and as a percent.
mc003-1.jpg
a.
mc003-2.jpg
b.
mc003-3.jpg
c.
mc003-4.jpg
d.
mc003-5.jpg
 

 4. 

Write this fraction as a percent.
mc004-1.jpg
a.
184%
b.
17.4%
c.
174%
d.
137%
 

 5. 

Find 170% of 58.
a.
9.86
b.
98.6
c.
986
d.
2.28
 

 6. 

Find the percent increase from 330 to 480. Round to the nearest tenth if necessary.
a.
0.5%
b.
45.5%
c.
31.3%
d.
68.8%
 

 7. 

Find the decrease in price as a percent. Round to the nearest percent.
Regular price: $135
Sale price: $83.00
a.
39%
b.
63%
c.
6%
d.
52%
 

 8. 

The original price of an item is $2445. It is on sale for $1765.
Find the decrease in price as a percent. Round to the nearest percent.
a.
26%
b.
39%
c.
7%
d.
28%
 

 9. 

The sales taxes are 14%. Find the tax paid for a pair of running shoes that costs $115.
a.
$16.10
b.
$161.00
c.
$1.22
d.
$2.25
 

 10. 

In Store A, a book that regularly sells for $24.99 is on sale at 15% off.
In Store B, the same book regularly sells for $27.99 and is on sale at 25% off.
Which store sells the book for the lower sale price? Explain.
a.
Store B; Store A’s sale price is $21.24 and Store B’s sale price is $23.79.
b.
Store A; Store A’s sale price is $18.74 and Store B’s sale price is $20.99.
c.
Store A; Store A’s sale price is $18.74 and Store B’s sale price is $23.79.
d.
Store B; Store A’s sale price is $21.24 and Store B’s sale price is $20.99.
 

Short Answer
 

 11. 

Write sa011-1.jpg% as a fraction in simplest form and as a decimal.
 

 12. 

Which decimals represent percents greater than 60%?
sa012-1.jpg
 

 13. 

Write 2.76 as a fraction and as a percent.
 

 14. 

Copy and complete this table.
Percent
Value
2000% of 320
 
200% of 320
 
20% of 320
 
2% of 320
 
0.2% of 320
 
 

 15. 

There are 23 000 workers in a factory. The management decides to reduce the workforce by 18%.
How many workers will the factory lay off?
 

 16. 

The population of a small town increased from 21 300 to 23 004.
What was the percent increase in population?
 

 17. 

The original selling price of a jacket was $122. At the end of the week the price was reduced by 10%.
At the end of the second week, the price was further reduced by 10%.
What was the selling price of the jacket after two weeks?
 

 18. 

The attendance on the first night of the school concert was 375.
The attendance on the second night was 420. What was the percent increase in attendance?
 

 19. 

The price of a book is $51. Calculate the total sales tax on the book if PST is 7% and GST is 5%.
 

 20. 

The cost price of an article is $63. This represents 20% of the selling price.
Calculate the selling price before taxes.
 

Problem
 

 21. 

This hundred chart represents 100%.
This hundred chart represents 100%.
a)      What fraction has been shaded acrosspr021-1.jpg?
b)      What fraction has been shaded downpr021-2.jpg?
c)      What fraction has been shaded both?
Write each answer as a fraction, as a decimal, and as a percent.
pr021-3.jpg
 

 22. 

An immunization program claims that 99.75% of those vaccinated are safe from a virus.
If 564 000 children were vaccinated, about how many are still at risk? Show your work.
 

 23. 

There are 378 students in a school. If 70% of the students sign up for Exercise Day, a sporting goods store will give the school 10% off on all purchases.
a)      What is the least number of students who must sign up for the school to make 70%? Show your work.
b)      The school plans to buy 1 basketball for every 12 students. How many basketballs will the school buy?
c)      A basketball costs $35. Suppose more than 70% of the students signed up for Exercise Day and the store offers the discount. What will be the total savings from purchasing the basketballs?
 

 24. 

Two stores sell the same model of a stereo with an original price of $573.
Store A offers a 16% discount and Store B sells the stereo for $458.40.
Which store gives the bigger percent discount? Justify your answer.
 

 25. 

A store is having a 10% off sale. It gives an additional 20% off for an item that is above $100 after the first 10% discount. A jacket costs $124.99.
a)      Will you get the second discount?
b)      If you buy the jacket, how much will you save in total?
Show your work.
 



 
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