Home
Add Document
Sign In
Register
Answer Key
Home
Answer Key
CK-12 Middle School Math Concepts - Grade 7. 1. 6.1. Percents. Answers. 1. .... 6.20 Simple Interest Equation to Find Interest Rate. Answers. 1. $40. ...
0 downloads
16 Views
51KB Size
DOWNLOAD
Recommend Documents
No documents
Answer Key
Chapter 6 – Using Percents 6.1
Percents
Answers 1. 10/100
2. 6/100
3. 22/100
4. 41/100
5. 33/100
6. 70/100
7. 77/100
8. 19/100
9. 25/100
10. 15/100
11. 7/100
12. 29/100
13. 88/100
14. 92/100
15. 90/100
6.2
Percents as Fractions
Answers 1. 1/10
2. 3/50
3. 11/50
4. 41/100
5. 33/100
6. 7/10
7. 77/100
8. 19/100
9. 3/25
10. 1/5
11. 1/20
12. ¼
13. 2/5
14. 3/5
15. 9/10
6.3
Fractions as Percents
Answers 1. 50%
2. 25%
3. 75%
4. 11%
5. 20%
6. 50%
7. 17%
8. 125%
9. 250%
10. 233%
11. 54%
12. 50%
13. 42%
14. 40%
15. 50%
4. 27
5. 150
6.4
Percent of a Number
Answers 1. 2.5
2. 6
3. 20
6. .8
7. 10
8. 3.8
9. 4.5
10. 3.6
13. 27
14. 100
15. 165
11. 6.75
12. 21.25
CK-12 Middle School Math Concepts - Grade 7
1
Answer Key
Chapter 6 – Using Percents 6.5
Proportions to Find Percent, P
Answers 1. 50%
2. 20%
3. 25%
4. 20%
5. 33.3%
6. 50%
7. 20%
8. 25%
9. 60%
10. 75%
11. 13.3%
12. 33.3%
13. 20%
14. 80%
15. 12.5%
6.6
Proportions to Find Part a
Answers 1. 4.5
2. 2
3. 7.2
4. 8.8
5. 30
6. 15
7. 32
8. 24
9. 60
10. .6
11. 1
12. 12.8
6.7
13. 5.75
14. 8.5
15. 9.9
Proportions to Find Base b
Answers 1. 50
2. 70
6. 28
11. 75
6.8
3. 50
4. 40
5. 32
7. 500
8. 5
9. 72
10. 300
12. 138.46
13. 120
14. 32.72
15. 400
Percents as Decimals
Answers 1. .12
2. .15
3. .03
4. .67
5. .18
6. .78
7. .34
8. .07
9. .06
10. .36
11. .28
12. .335
13. .185
14. .1325
15. .0675
CK-12 Middle School Math Concepts - Grade 7
2
Answer Key
Chapter 6 – Using Percents 6.9
Decimals as Percents
Answers 1. 45%
2. 30%
3. 67.5%
4. 90%
5. 8%
6. 78.5%
7. 22%
8. 9.5%
9. 54%
10. 27.5%
11. 4%
12. 4.5%
13. 11.2%
14. 460%
15. 67.2%
6.10
Small and Large Percents as Decimals
Answers 1. .0034
2. .005
3. 3.5
4. 6.5
5. .0030
6. .0010
7. .0009
8. .0022
9. 2.3
10. 5
11. 7
12. .00012
13. .0004
14. .006
15. .0016
6.11
Percent Equation to find Part a
Answers 1. 3.6
2. 3
3. 4.5
4. 3.24
5. 5.4
6. 44
7. 9
8. 67.5
9. 8.8
10. 15
12. 198
13. 10.8
14. 42.55
15. 32.8
11. 1.2
6.12
Percent Equation to Find Percent
Answers 1. 50%
2. 50%
3. 25%
4. 25%
5. 40%
6. 50%
7. 50%
8. 25%
9. 50%
10. 92%
11. 14%
12. 45%
13. 66%
14. 70.4%
15. 10%
CK-12 Middle School Math Concepts - Grade 7
3
Answer Key
Chapter 6 – Using Percents 6.13
Percent Equation to Find the Base b
Answers 1. 50
2. 50
6. 70
7. 320 12. 83.3
11. 333.3
6.14
3. 90
4. 24
5. 37.5
8. 200
9. 112.5
10. 64
13. 140
14. 550
15. 335
Percent of Increase
Answers 1. 60%
2. 100%
3. 178%
4. 264%
5. 12.5%
6. 233%
7. 17.6%
8. 20%
9. 38.5%
10. 25%
11. 50%
12. 40%
13. 14.3%
14. 12.5%
15. 22.2%
6.15
Percent of Decrease
Answers 1. 60%
2. 63%
3. 55.5%
4. 6.6%
5. 33.3%
6. 16.6%
7. 25%
8. 7%
9. 19.6%
10. 87%
11. 50%
12. 12%
13. 33%
14. 15%
15. 95%
6.16
Percent of Change
Answers 1. 22.5
2. 25.5
3. 16.2
4. 27.3
5. 10.56
6. 77.4
7. 40
8. 86.33
9. 42
10. 12
11. 209
12. 67.5
13. 147.6
14. 1320
15. 13,680
CK-12 Middle School Math Concepts - Grade 7
4
Answer Key
Chapter 6 – Using Percents 6.17
Prices Involving Discounts
Answers 1. $22.80
2. $14.40
3. $21.60
4. $30.00
5. $16.20
6. $11.94
7. $54.00
8. $108.00
9. $102.00
10. $20.40
11. $46.75
12. $30.18 or $30.17
13. $15.30
14. $7.44
15. $21.25
6.18
Prices Involving Sales Tax
Answers 1. $3.00
2. $5.60
3. $5.00
4. $7.00
5.$9.00
6. $10.00
7. $18.00
8.$24.00
9. $25.00
10. $22.00
11. $26.00
12. $27.00
13. $19 – 20.00
14. $18.00
15. $20.00
6.19
Total Bill Involving Tip and Tax
Answers 1. $70.37
2. $53.63
3. $80.60
4. $31.62
5.$23.25
6. $73.16
7. $26.66
8. $55.18
9. $15.50
10. $53.32
11. $110.98
12. $123.19
13. $292.33
14. $372.62
15. $841.03
6.20
Simple Interest Equation to Find Interest Rate
Answers 1. $40
2. $30
3. $200
4. $60
5. $96
6. $45
7. $92
8. $40
9. $625
10. $330
11. $525
12. $2100
13. $3510
14. $8050
15. $25,000
CK-12 Middle School Math Concepts - Grade 7
5
Answer Key
Chapter 6 – Using Percents 6.21
Simple Interest
Answers 1. $45
2. $92
3. $40
4. $625
5. $330
6. $525
7. $2100
8. $138
9. $1787.50
10. $2400
11. 4 years
12. 2.5 years
13. $6.25
14. Avi, $2.60 more
6.22
15. $12,916.67
Interpretation of Circle Graphs
Answers 1. Baseball
2. Ice Hockey
3. 15%
4. 60 people
5. 27 people
6 – 8 Answers Vary 9. 0
10. Pizza
11. Chicken Sandwich or Tacos
14. 70%
15. 70%
16. 30%
12. 10%
13. 90%
17 – 18. Answers Vary
6.23
Circle Graphs to Display Data
Answers 1 – 3 Answers Vary 4. 43.2°
5. 90°
6. 100.8° or 101°
7. 151.2° or 151°
8. 68.4° or 68°
9. 288°
10. 324°
11. 122.4° or 122°
12. 54°
13. 18°
14. 36°
15. 280.8° or 281°
CK-12 Middle School Math Concepts - Grade 7
6
×
Sign In
Email
Password
Remember me
Forgot password?
Sign In
Login with Facebook
Login with Google