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Chapter 15 - Assessment

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Write the percent as a decimal.
 

 1. 
190%
a.
190
c.
19
b.
1.9
d.
0.19
 

 2. 
4%
a.
0.4
c.
4
b.
0.04
d.
0.004
 

 3. 
28.3%
a.
2.83
c.
28.3
b.
0.0283
d.
0.283
 
 
Write the decimal as a percent.
 

 4. 
3.36
a.
336%
c.
0.0336%
b.
3.36%
d.
33.6%
 

 5. 
0.0624
a.
0.0624%
c.
62.4%
b.
0.624%
d.
6.24%
 

 6. 
0.22
a.
220%
c.
2.2%
b.
0.22%
d.
22%
 
 
Tell which number is greater.
 

 7. 
26%, mc007-1.jpg
a.
They are equal.
b.
26%
c.
mc007-2.jpg
 

 8. 
50%, 0.05
a.
They are equal.
b.
50%
c.
0.05
 
 
Use a number line to order the numbers from least to greatest.
 

 9. 
mc009-1.jpg, 0.15, mc009-2.jpg, 7%
a.
mc009-3.jpg, mc009-4.jpg, 7%, 0.15
c.
0.15, mc009-7.jpg, mc009-8.jpg, 7%
b.
7%, mc009-5.jpg, mc009-6.jpg, 0.15
d.
7%, mc009-9.jpg, mc009-10.jpg, 0.15
 

 10. 
21%, mc010-1.jpg, 0.24
a.
21%, 0.24, mc010-2.jpg
c.
mc010-4.jpg, 0.24, 21%
b.
0.24, 21%, mc010-3.jpg
d.
mc010-5.jpg, 21%, 0.24
 
 
Answer the question.
 

 11. 
What number is 70% of 30?
a.
22
c.
20
b.
21
d.
9
 

 12. 
15 is what percent of 20?
a.
75%
c.
80%
b.
85%
d.
133%
 

 13. 
0.4% of what number is 12?
a.
4.8
c.
3000
b.
2500
d.
3250
 

 14. 
27 is 20% of what number?
a.
140
c.
135
b.
125
d.
540
 
 
Find the sale price or selling price.
 

 15. 
Cost to store: $20
Markup: 30%
Selling price:   ? 
a.
$50
c.
$27
b.
$24
d.
$26
 
 
An account earns simple interest. Find the annual interest rate.
 

 16. 
I = $120, P = $400, t = 36 months
a.
9%
c.
30%
b.
0.1%
d.
10%
 

 17. 
I = $278.44, P = $3100, t = 28 months
a.
8.98%
c.
0.04%
b.
5.83%
d.
3.85%
 

 18. 
I = $150, P = $750, t = 4 years
a.
20%
c.
7%
b.
5%
d.
0.05%
 
 
An account earns simple interest. Find the amount of time.
 

 19. 
I = $100, P = $200, r = 2%
a.
0.3 year
c.
27 years
b.
25 years
d.
26 years
 

Other
 

 1. 
Extended Response  The table shows the portion of each 24-hour day that the sun was visible for five days.
Day
Portion of Day the Sun was Visible
Monday
0.1
Tuesday
23%
Wednesday
ot001-1.jpg
Thursday
ot001-2.jpg
Friday
7%
a.   Order the days by the amount of time the sun was visible from least to greatest.
b.   Estimate the portion of the day the sun was visible on your last birthday.
c.   Where would your last birthday fit on the list?
d.   Estimate the least and greatest  portions of a day that the sun can shine in your area. Explain your reasoning.
 



 
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