Additional Exercises 6.1
Name:
Date:
1. At an election, 55 out of every 100 eligible voters turned out to vote.
What percent of eligible voters turned out?
1. _______________
2. In a survey of 100 people, 42 people preferred the color blue.
What percent preferred blue?
2. _______________
3. To write a decimal as a percent, multiply by
3. _______________
?
4. To write a percent as a decimal, remove the percent symbol
and multiply by ?
4. _______________
Write each percent as a decimal.
5. 52%
5. _______________
6. 2%
6. _______________
7. 1.3%
7. _______________
8. 10.5%
8. _______________
9. 0.8%
9. _______________
10. 100%
10. _______________
11. 150%
11. _______________
12. 360%
12. _______________
Write each decimal as a percent.
13. 0.27
13. _______________
14. 5.8
14. _______________
15. 0.024
15. _______________
16. 0.875
16. _______________
17. 0.007
17. _______________
18. 1.2
18. _______________
19. 3.20
19. _______________
20. 7.0
20. _______________
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Additional Exercises 6.2
Name:
Date:
1. To write a percent as a fraction, replace the percent symbol
with the fraction equivalent ? and multiply.
1. _______________
2. To write a fraction as a percent, multiply by ?
2. _______________
.
Write each percent as a fraction or mixed number in simplest form.
3. 16%
3. _______________
4. 40%
4. _______________
5. 5%
5. _______________
6. 1.5%
6. _______________
7. 10.2%
7. _______________
8. 120%
8. _______________
9. 350%
9. _______________
10. 210%
10. _______________
Write each fraction or mixed number as a percent. Round to the nearest hundredth percent.
11. 17
35
11. _______________
12. 1
8
12. _______________
13. 3 1
3
13. _______________
14. 1 4
5
14. _______________
15. 3 7
10
15. _______________
16. 54
18
16. _______________
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Additional Exercises 6.2 (Cont.)
17. 30
14
17. _______________
4
11
18. _______________
18.
19. 5% of dogs in a community do not have a license.
Write this percent as a fraction.
19. _______________
20. The sales tax rate in Caddo Gap, Arkansas is 5.125%.
Write this percent as a decimal.
20. _______________
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Additional Exercises 6.3
1. In the following statement, identify the (a) amount, (b) base,
and (c) the percent: 16 is 25% of 64.
Name:
Date:
1. _______________
Translate each to an equation. Do not solve.
2. 16% of 58 is what number?
2. _______________
3. What number is 40% of 12?
3. _______________
4. 75% of what number is 17?
4. _______________
5. What percent of 70 is 30?
5. _______________
6. What number is 45% of 900?
6. _______________
7. 38% of 60 is what number?
7. _______________
8. 40 is 80% of what number?
8. _______________
9. 2.6 is 13% of what number?
9. _______________
10. 48 is what percent of 40?
10. _______________
Solve.
11. 120 is what percent of 160?
11. _______________
12. 0.2 is 40% of what number?
12. _______________
13. 21 is 10% of what number?
13. _______________
14. 840 is 8% of what number?
14. _______________
15. 6.6 is what percent of 120?
15. _______________
16. What percent of 45 is 135?
16. _______________
17. What percent of 20 is 16.8?
17. _______________
18. 0.5% of 6500 is what number?
18. _______________
19. 180% of what number is 1116?
19. _______________
20. 10.2% of 143.5 is what number?
20. _______________
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Additional Exercises 6.4
Name:
Date:
1. In the following equation, identify the (a) amount, (b) base,
42 12.6
and (c) percent:
=
100 30
Translate each to a proportion. Do not solve.
1._______________
2. What number is 12% of 15?
2. _______________
3. 30% of what number is 70?
3. _______________
4. What percent of 7 is 1.4?
4. _______________
5. 4.6 is what percent of 23?
5. _______________
6. 15 is what percent of 5?
6. _______________
7. 20% of 44 is what number?
7. _______________
8. What number is 85% of 300?
8. _______________
9. 40 is 25% of what number?
9. _______________
10. 60% of what number is 90?
10. _______________
Solve.
11. 22.4 is what percent of 16?
11. _______________
12. 23 is what percent of 50?
12. _______________
13. 15% of 8 is what number?
13. _______________
14. 56 is what percent of 80?
14. _______________
15. 105 is what percent of 2100?
15. _______________
16. 125 is 25% of what number?
16. _______________
17. 115% of 22 is what number?
17. _______________
18. 103.2 is what percent of 86?
18. _______________
19. What percent of 1.2 is 1.8?
19. _______________
20. 230% of what number is 46?
20. _______________
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Additional Exercises 6.5
Name:
Date:
Solve. If necessary, round to the nearest tenth of a percent.
1. An inspector found 15 defective batteries during an inspection.
If this is 2.5% of the total number of batteries inspected, how
many batteries were inspected?
1. _______________
2. Mrs. Wilkes paid 12% of the purchase price of a $95,000 home
as a down payment. How much did she pay down?
2. _______________
3. The Talbot family’s total income is $3000 per month. Last month,
they spent $450 dining out. What percent of their monthly income
was spent on dining out?
3. _______________
4. On average, 0.8% of the cookies baked by a bakery are discarded.
If 1210 cookies were discarded during one week, how many
were baked?
4. _______________
5. Elaine's salary last year was $60,000. This year she received a 5% raise.
What is her salary this year?
5. _______________
6. Last year, Mrs. Lutz had 40 piano students. This year, she has 56 students.
Find the percent increase.
6. _______________
7. The average number of customers per day at Dawson's Toy Store decreased
from 240 to 210. Find the percent decrease.
7. _______________
8. The Rocky Valley Motel charges $60.00 a night during the summer, but
$45.00 a night during the fall. What is the percent decrease?
8. _______________
9. The price of a gallon of milk increased from $3.05 to $3.18.
Find the percent increase.
9. _______________
10. With the addition of a new wing, a rural hospital with 156 beds now has
210 beds. Find the percent increase.
10. _______________
11. A bill passed to decrease taxes by 2%. If Sean paid $3120 in taxes last year,
what tax will he pay this year if his income remains the same?
11. _______________
12. The wholesale cost of a lamp is $15. If a store has a standard mark-up of
30%, what will be the retail purchase price of the lamp?
12. _______________
13. The size of the Greene family cattle herd was 652 before selling 240
heifers. What was the size of the herd after the sale and what was the
percent decrease?
13. _______________
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Additional Exercises 6.5 (cont.)
14. A salad dressing has 340 mg of sodium per serving. This is 14% of
the daily recommended amount of sodium. What is the daily
recommended amount of sodium?
14. _______________
15. There are a total of 190 calories per 2 tablespoon serving of crunchy
peanut butter. Of these,130 are from fat. Find what percent of total
calories is from fat.
15. _______________
16. Find the percent increase if 150 is increased to 210.
16. _______________
17. Find the amount of increase and new amount if 75 is increased
by 40%.
17. _______________
18. Find the percent decrease if 120 is decreased to 60.
18. _______________
19. Find the amount of decrease and the new amount if $84.50 is
decreased by 12%.
19. _______________
20. Sun Computers currently produces 160 computers per month. If
production increases 5%, find the new number of computers
produced per month.
20. _______________
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Additional Exercises 6.6
Name:
Date:
Solve.
1. If the sales tax rate is 7%, find the sales tax on a $350 fax machine.
1. _______________
2. What is the sales tax on a $250 television if the sales tax rate is 6%?
2. _______________
3. A refrigerator sells for $600. With a sales tax rate of 6.5%,
find the total price.
3. _______________
4. Find the total price if a sports utility vehicle sells for $36,500
and sales tax rate of 5%.
4. _______________
5. Daniel bought shoes for $85 and a shirt for $35. Find the total price
he paid if the sales tax rate was 5.5%.
5. _______________
6. The sales tax is $72 on a desk priced at $1500. Find the sales tax rate.
6. _______________
7. The sales tax is $0.54 on an $9 purchase. Find the sales tax rate.
7. _______________
8. Find the amount of sales tax and the total price on a $53.49 item with an
8.25% sales tax rate.
8. _______________
9. Hazel is paid a commission rate of 4% on all sales. Her sales were
$103,000 last month, what was her commission for the last month?
9. _______________
10. Evelyn receives a 3.8% commission on all sales. If she sold $2520 worth
of merchandise last week, what was her commission?
10. _______________
11. A salesman earned a commission of $2520 for selling 56,000 worth of
hardware. What is his commission rate?
11. _______________
12. How much commission will Keith receive from the sale of an $89,000
home if he receives 2% of the sale price?
12. _______________
13. An insurance agent earned $14,000 for selling $2,800,000 worth of
insurance. What is her commission rate?
13. _______________
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Additional Exercises 6.6 (cont.)
Find the amount of discount and the sale price.
Original Price
Discount Rate
14.
$15
20%
14. _______________
15.
$420
12%
15. _______________
16.
$1080
10%
16. _______________
17.
$999
30%
17. _______________
18.
$2000
50%
18. _______________
19.
$56
25%
19. _______________
20.
$85
20%
20. _______________
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