Class Activities 6.1-6.4
Name
Math 105 Ali Roshan
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. _______________
Class Activities 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. _______________
E-60
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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Class Activities 6.3
Name:
Date:
1. In the following statement, identify the (a) amount, (b) base,
and (c) the percent: 16 is 25% of 64.
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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Class Activities 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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