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Pre-Algebra Unit 7 Percent Quiz

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

 1. 

Write the number mc001-1.jpg as a percent.
a.
40%
b.
0.4%
c.
4%
d.
4,000%
e.
400%
 

 2. 

Write the number mc002-1.jpg as a percent.
a.
47,500%
b.
47.5%
c.
4.75%
d.
475%
e.
4,750%
 

 3. 

978 is 45.9 % of what number?

Round your answer to two decimal places.
a.
6.1
b.
2,769.93
c.
583.57
d.
4.69
e.
448.9
f.
2,130.72
 

 4. 

Tortilla Chips

For this nutrition label find what percent of the total number of calories comes from fat calories.

Calories
Calories from fat
% of Cholesterol
% of vitamins
Calories from protein
425
176
0.9
4
10

Round the result to one decimal place.
a.
71.3 %
b.
41.4 %
c.
2.4 %
d.
19.6 %
 

 5. 

Population

In a city of 38,428 people, there are 9,607 people under 35 years of age. What percent of the population is under 35 years of age?
a.
35.125 %
b.
25 %
c.
33 %
d.
25.75 %
e.
50 %
 

 6. 

If an appliance salesperson gets 7% commission on all the appliances she sells, what is the price of a refrigerator if her commission is $52.50?
a.
$730
b.
$740
c.
$720
d.
$750
e.
$760
 

 7. 

If the commission rate for a mobile home salesperson is 14%, what is the commission on the sale of a $15,169 mobile home? (Round to the nearest cent.)
a.
$2,112.25
b.
$2,123.66
c.
$2,143.03
d.
$2,165.29
 

 8. 

Calorie Content

A certain light beer has 20% fewer calories than the regular beer. If the regular beer has 120 calories per bottle, how many calories are in the same-sized bottle of the light beer?
a.
144 cal
b.
90 cal
c.
96 cal
d.
106 cal
 

 9. 

On opening day, a new music store offers a 15% discount on all electric guitars. If the regular price on a guitar is $500, what is the sale price?
a.
$423
b.
$424
c.
$422
d.
$421
e.
$425
 

 10. 

Total Price

A bedroom set that normally sells for $1,700 is on sale for 25% off. If the sales tax rate is 5%, what is the total price of the bedroom set if it is bought while on sale?
a.
$1,337.71
b.
$1,239.99
c.
$1,338.75
d.
$1,425.79
 

Numeric Response
 

 1. 

Write the number nr001-1.jpg as a percent.

__________ %

 

 2. 

Write the number nr002-1.jpg as a percent.

__________ %

 

 3. 

Write the number nr003-1.jpg as a percent.

__________ %

 

 4. 

Write the number nr004-1.jpg as a percent.

__________ %

 

 5. 

What number is 74% of 38?

 

 6. 

What percent of 100 is 5?

__________ %

 

 7. 

What percent of 937 is 223?

Round to the nearest tenth of a percent.

__________ %

 

 8. 

37 is what percent of 95?

Round your answer to the nearest hundredth.

__________ %

 

 9. 

What is 80% of 19,566?

 

 10. 

Manufacturing

A car manufacturer estimates that 12% of the new cars sold in one city have defective engine mounts. If 3,900 new cars are sold in that city, how many will have defective engine mounts?

__________ cars

 

Short Answer
 

 1. 

Change the percent to a fraction in lowest terms.

2.1%
 

 2. 

Suppose the purchase price of a dining room set is $550. If the sales tax is $11, write the equation needed to find the sales tax rate. Use x as a variable.

sa002-1.jpg
 



 
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