Name: 
 

Chapter 13 Study Guide



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

 1. 

What percent of the figure is shaded?

mc001-1.jpg
a.
mc001-2.jpg%
b.
3%
c.
30%
d.
300%
 

 2. 

The town garden has 80% tulips in it. Which of the following shows 80% tulips?
mc002-1.jpg
a.
mc002-2.jpg
b.
mc002-3.jpg
c.
mc002-4.jpg
d.
mc002-5.jpg
 

 3. 

The sixth graders are helping raise money to buy new books for the school library. What percent of the goal still needs to be achieved?

mc003-1.jpg
a.
40%
b.
50%
c.
60%
d.
70%
 

 4. 

The mayor of a city is going over the city’s budget. The mayor decided to increase the funding for the city’s art program by 0.85%. What is 0.85% written as a decimal number?
a.
0.0085
c.
0.85
b.
0.085
d.
8.5
 

 5. 

Housing prices in one town increased by 125% last year. What is 125% written as a fraction?
a.
mc005-1.jpg
c.
mc005-3.jpg
b.
mc005-2.jpg
d.
mc005-4.jpg
 

 6. 

There are 312 students at Lakeview School. About 58% of the students participate in some sort of sport. About how many students at Lakeview school participate in a sport?
a.
60
b.
150
c.
180
d.
240
 

 7. 

Which is the best estimate for 72% of 516?
a.
70
b.
72
c.
350
d.
400
 

 8. 

Which is the best estimate for 82% of 809?
a.
720
b.
640
c.
82
d.
80
 

 9. 

The circle graph shows the sales of different colors of sweaters at a casual clothing store. In all, 400 sweaters were sold. How many blue sweaters were sold?
mc009-1.jpg
a.
60
b.
80
c.
88
d.
312
 

 10. 

Boots were on sale for 30% off. How much would you pay for a pair of boots with an original price of $79?
a.
$23.70
c.
$102.70
b.
$55.30
d.
$134.30
 

 11. 

Five friends went out for dinner. The total bill was $102. They want to leave an 18% tip. How much is the tip?
a.
$20.00
c.
$18.36
b.
$20.40
d.
$18.00
 

 12. 

About 40% of the sixth grade students play an instrument. Of those, 50% play a woodwind instrument. There are 80 sixth grade students. Is it reasonable to say that 72 sixth grade students play woodwind instruments?
a.
No, because 32 is 40% of all sixth grade students and 16 is 50% of the sixth grade students who play an instrument.
b.
No, because 72 is not 50% of 80.
c.
Yes, because 90% of 80 is 72.
d.
Yes, because its seem like a lot of sixth grade students play woodwinds.
 

 13. 

The number of registered voters in a town increased by 130% in the last two years. Of that increase, about 20% of the new registered voters are under the age of 25. The town had 500 registered voters two years ago. Is it reasonable to say that the town now has 130 new registered voters under the age of 25?
a.
No, because 150% of 500 is 750.
b.
Yes, because 130% is 130 people.
c.
No, because we don’t know how many voters under 25 the town had 2 years ago.
d.
Yes, because 130% of 500 people is 650, and 20% of 650 is 130.
 

 14. 

A local animal shelter is raising funds to buy new equipment. What percent of the goal still needs to be achieved?

mc014-1.jpg
a.
20%
b.
25%
c.
10%
d.
5%
 

 15. 

Use the model to represent 20% as a fraction in simplest form.

mc015-1.jpg
a.
mc015-2.jpg
b.
mc015-3.jpg
c.
mc015-4.jpg
d.
mc015-5.jpg
 

 16. 

Write 0.032 as a fraction in simplest form.
a.
mc016-1.jpg
b.
mc016-2.jpg
c.
mc016-3.jpg
d.
32%
 

 17. 

Meg is 635% heavier than her cat. Which of the following is equal to 635%?
a.
6mc017-1.jpg
c.
6mc017-3.jpg
b.
6mc017-2.jpg
d.
635
 

 18. 

When the Johnson’s sold their house, the selling price was 220% of the price they paid for the house originally. Which of the following is equal to 220%?
a.
mc018-1.jpg
c.
mc018-3.jpg
b.
mc018-2.jpg
d.
mc018-4.jpg
 

 19. 

The 387 students at a middle school were asked to vote on a mascot. About 42% of the students chose a lion. About how many students chose a lion?
a.
120
b.
160
c.
180
d.
200
 

 20. 

Which is the best estimate for 17% of 516?
a.
10
b.
100
c.
150
d.
1,000
 

 21. 

Find 27% of 540.
a.
162
b.
150
c.
145.80
d.
136.80
 

 22. 

When Luis and his family went to out dinner, the bill was $86. If they tipped the waiter 15%, how much did they spend total?
a.
$12.90
c.
$94.60
b.
$73.10
d.
$98.90
 

 23. 

About 50% of the animals at a pet store are small mammals. Of those, about 50% are gerbils. Does that mean that 25% of the animals at the pet store are gerbils?
a.
No, because only 25% is less than 50%.
b.
Yes, because 50% x 50% = 25%.
c.
No, because 50% + 50% = 100%. So all the animals are gerbils
d.
No, because 50% – 50% is only 0%. So none of the animals are gerbils.
 



 
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